TY  - JOUR
AU  - Ivanović, Nenad
AU  - Radisavljević, Ivana
AU  - Novaković, Nikola
AU  - Manasijević, Miodrag
AU  - Colognesi, D.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6917
AB  - Lithium amide (LiNH(2)) and imide (Li(2)NH) have recently attracted much attention as part of the Li-H-N system suitable for hydrogen (H) storage applications. However, the ground-state imide structure is still unknown with at least six candidate structures, with ground state energies all very close to one another. In order to discover possible pathways for the imide-amide-imide transformations during the hydrogen absorption/desorption cycles, we have examined the molecular structures involved (along with their changes during these processes) using ab-initio calculations based on the linear combination of atomic orbitals (LCAO). In addition, the influence of Li substitution by some other elements of interest on the system behaviour was investigated. These analyses were complemented by density functional theory (DFT) calculations of several crystal structures appearing in the processes. In this way a thorough insight into the structures and the processes taking place at atomic level is attained, providing a starting point for understanding these complicated systems, and the mechanisms governing their transformations.
T2  - Acta Physica Polonica A
T1  - Calculations of Molecular Structures and Processes Important for Hydrogen Behaviour in the Li-Amide/Imide System
VL  - 120
IS  - 2
SP  - 242
EP  - 245
DO  - 10.12693/APhysPolA.120.242
ER  - 

@article{
author = "Ivanović, Nenad and Radisavljević, Ivana and Novaković, Nikola and Manasijević, Miodrag and Colognesi, D.",
year = "2011",
abstract = "Lithium amide (LiNH(2)) and imide (Li(2)NH) have recently attracted much attention as part of the Li-H-N system suitable for hydrogen (H) storage applications. However, the ground-state imide structure is still unknown with at least six candidate structures, with ground state energies all very close to one another. In order to discover possible pathways for the imide-amide-imide transformations during the hydrogen absorption/desorption cycles, we have examined the molecular structures involved (along with their changes during these processes) using ab-initio calculations based on the linear combination of atomic orbitals (LCAO). In addition, the influence of Li substitution by some other elements of interest on the system behaviour was investigated. These analyses were complemented by density functional theory (DFT) calculations of several crystal structures appearing in the processes. In this way a thorough insight into the structures and the processes taking place at atomic level is attained, providing a starting point for understanding these complicated systems, and the mechanisms governing their transformations.",
journal = "Acta Physica Polonica A",
title = "Calculations of Molecular Structures and Processes Important for Hydrogen Behaviour in the Li-Amide/Imide System",
volume = "120",
number = "2",
pages = "242-245",
doi = "10.12693/APhysPolA.120.242"
}

Ivanović, N., Radisavljević, I., Novaković, N., Manasijević, M.,& Colognesi, D.. (2011). Calculations of Molecular Structures and Processes Important for Hydrogen Behaviour in the Li-Amide/Imide System. in Acta Physica Polonica A, 120(2), 242-245.
https://doi.org/10.12693/APhysPolA.120.242

Ivanović N, Radisavljević I, Novaković N, Manasijević M, Colognesi D. Calculations of Molecular Structures and Processes Important for Hydrogen Behaviour in the Li-Amide/Imide System. in Acta Physica Polonica A. 2011;120(2):242-245.
doi:10.12693/APhysPolA.120.242 .

Ivanović, Nenad, Radisavljević, Ivana, Novaković, Nikola, Manasijević, Miodrag, Colognesi, D., "Calculations of Molecular Structures and Processes Important for Hydrogen Behaviour in the Li-Amide/Imide System" in Acta Physica Polonica A, 120, no. 2 (2011):242-245,
https://doi.org/10.12693/APhysPolA.120.242 . .

TY  - JOUR
AU  - Radisavljević, Ivana
AU  - Novaković, Nikola
AU  - Romčević, Nebojša Ž.
AU  - Manasijević, Miodrag
AU  - Mahnke, Heinz-Eberhard
AU  - Ivanović, Nenad
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4033
AB  - X-ray Absorption Fine Structure (XAFS) measurements were performed on uniformly doped PbTe:Yb (1.3 at.%) at all elemental absorption edges and the analysis of the results has provided precise information on the local structure around each atom. From the near edge part of the absorption spectra it was determined that Yb is in the mixed valent state, which is predominantly divalent with a small trivalent contribution. The analysis of the high energy region of the absorption spectra revealed that Yb incorporation causes deformation of the host PbTe lattice, manifested through extension of all the nearest-, and next-nearest neighbour distances. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - XAFS studies of ytterbium doped lead-telluride
VL  - 501
IS  - 1
SP  - 159
EP  - 163
DO  - 10.1016/j.jallcom.2010.04.068
ER  - 

@article{
author = "Radisavljević, Ivana and Novaković, Nikola and Romčević, Nebojša Ž. and Manasijević, Miodrag and Mahnke, Heinz-Eberhard and Ivanović, Nenad",
year = "2010",
abstract = "X-ray Absorption Fine Structure (XAFS) measurements were performed on uniformly doped PbTe:Yb (1.3 at.%) at all elemental absorption edges and the analysis of the results has provided precise information on the local structure around each atom. From the near edge part of the absorption spectra it was determined that Yb is in the mixed valent state, which is predominantly divalent with a small trivalent contribution. The analysis of the high energy region of the absorption spectra revealed that Yb incorporation causes deformation of the host PbTe lattice, manifested through extension of all the nearest-, and next-nearest neighbour distances. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "XAFS studies of ytterbium doped lead-telluride",
volume = "501",
number = "1",
pages = "159-163",
doi = "10.1016/j.jallcom.2010.04.068"
}

Radisavljević, I., Novaković, N., Romčević, N. Ž., Manasijević, M., Mahnke, H.,& Ivanović, N.. (2010). XAFS studies of ytterbium doped lead-telluride. in Journal of Alloys and Compounds, 501(1), 159-163.
https://doi.org/10.1016/j.jallcom.2010.04.068

Radisavljević I, Novaković N, Romčević NŽ, Manasijević M, Mahnke H, Ivanović N. XAFS studies of ytterbium doped lead-telluride. in Journal of Alloys and Compounds. 2010;501(1):159-163.
doi:10.1016/j.jallcom.2010.04.068 .

Radisavljević, Ivana, Novaković, Nikola, Romčević, Nebojša Ž., Manasijević, Miodrag, Mahnke, Heinz-Eberhard, Ivanović, Nenad, "XAFS studies of ytterbium doped lead-telluride" in Journal of Alloys and Compounds, 501, no. 1 (2010):159-163,
https://doi.org/10.1016/j.jallcom.2010.04.068 . .

TY  - JOUR
AU  - Novaković, Nikola
AU  - Grbović-Novaković, Jasmina
AU  - Matović, Ljiljana
AU  - Manasijević, Miodrag
AU  - Radisavljević, Ivana
AU  - Paskaš Mamula, Bojana
AU  - Ivanović, Nenad
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3911
AB  - The understanding of hydrogen bonding in magnesium and magnesium based alloys is an important step toward its prospective use. In the present study, a density functional theory (DFT) based, full-potential augmented plane waves method of calculation, extended with local orbitals (FP-APW+lo), was used to investigate the stability of MgH2 and MgH2:TM (TM = Ti and Co) 10 wt% alloys and the influence of this alloying on hydrogen storage properties of MgH2 compound. Effects of a possible spin polarisation induced in the system by transition metal (TM) ions were considered too. It has been found that TM-H bonding is stronger than the Mg-H bond, but at the same time it weakens other bonds in the second and third coordination around a TM atom, which leads to overall destabilization of the MgH2 compound. Due to a higher number of d-electrons, this effect is more pronounced for Co alloying, where in addition, the spin polarisation has a noticeable and stabilising influence on the compound structure. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Ab initio calculations of MgH2, MgH2:Ti and MgH2:Co compounds
VL  - 35
IS  - 2
SP  - 598
EP  - 608
DO  - 10.1016/j.ijhydene.2009.11.003
ER  - 

@article{
author = "Novaković, Nikola and Grbović-Novaković, Jasmina and Matović, Ljiljana and Manasijević, Miodrag and Radisavljević, Ivana and Paskaš Mamula, Bojana and Ivanović, Nenad",
year = "2010",
abstract = "The understanding of hydrogen bonding in magnesium and magnesium based alloys is an important step toward its prospective use. In the present study, a density functional theory (DFT) based, full-potential augmented plane waves method of calculation, extended with local orbitals (FP-APW+lo), was used to investigate the stability of MgH2 and MgH2:TM (TM = Ti and Co) 10 wt% alloys and the influence of this alloying on hydrogen storage properties of MgH2 compound. Effects of a possible spin polarisation induced in the system by transition metal (TM) ions were considered too. It has been found that TM-H bonding is stronger than the Mg-H bond, but at the same time it weakens other bonds in the second and third coordination around a TM atom, which leads to overall destabilization of the MgH2 compound. Due to a higher number of d-electrons, this effect is more pronounced for Co alloying, where in addition, the spin polarisation has a noticeable and stabilising influence on the compound structure. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Ab initio calculations of MgH2, MgH2:Ti and MgH2:Co compounds",
volume = "35",
number = "2",
pages = "598-608",
doi = "10.1016/j.ijhydene.2009.11.003"
}

Novaković, N., Grbović-Novaković, J., Matović, L., Manasijević, M., Radisavljević, I., Paskaš Mamula, B.,& Ivanović, N.. (2010). Ab initio calculations of MgH2, MgH2:Ti and MgH2:Co compounds. in International Journal of Hydrogen Energy, 35(2), 598-608.
https://doi.org/10.1016/j.ijhydene.2009.11.003

Novaković N, Grbović-Novaković J, Matović L, Manasijević M, Radisavljević I, Paskaš Mamula B, Ivanović N. Ab initio calculations of MgH2, MgH2:Ti and MgH2:Co compounds. in International Journal of Hydrogen Energy. 2010;35(2):598-608.
doi:10.1016/j.ijhydene.2009.11.003 .

Novaković, Nikola, Grbović-Novaković, Jasmina, Matović, Ljiljana, Manasijević, Miodrag, Radisavljević, Ivana, Paskaš Mamula, Bojana, Ivanović, Nenad, "Ab initio calculations of MgH2, MgH2:Ti and MgH2:Co compounds" in International Journal of Hydrogen Energy, 35, no. 2 (2010):598-608,
https://doi.org/10.1016/j.ijhydene.2009.11.003 . .

TY  - JOUR
AU  - Radisavljević, Ivana
AU  - Novaković, Nikola
AU  - Ivanović, Nenad
AU  - Romčević, Nebojša Ž.
AU  - Manasijević, Miodrag
AU  - Mahnke, Heinz-Eberhard
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6866
AB  - The problem of impurities and defect states in lead telluride-based semiconductors is of crucial importance for their practical applications. X-ray absorption fine structure (XAFS) techniques are capable to address some of the key issues regarding impurities position, their valent state, as well as the local structural changes of the host lattice in the immediate surrounding of the impurity atoms. In this paper we present the results of the Ni K-absorption edge XAFS studies of Ni-doped PbTe at different temperatures. Analysis of near edge and extended XAFS regions of the measured spectra provided information about exact local environment and lattice ordering around Ni atoms. (C) 2009 Elsevier B.V. All rights reserved.
T2  - Physica B: Condensed Matter
T1  - XAFS studies of nickel-doped lead telluride
VL  - 404
IS  - 23-24
SP  - 5032
EP  - 5034
DO  - 10.1016/j.physb.2009.08.209
ER  - 

@article{
author = "Radisavljević, Ivana and Novaković, Nikola and Ivanović, Nenad and Romčević, Nebojša Ž. and Manasijević, Miodrag and Mahnke, Heinz-Eberhard",
year = "2009",
abstract = "The problem of impurities and defect states in lead telluride-based semiconductors is of crucial importance for their practical applications. X-ray absorption fine structure (XAFS) techniques are capable to address some of the key issues regarding impurities position, their valent state, as well as the local structural changes of the host lattice in the immediate surrounding of the impurity atoms. In this paper we present the results of the Ni K-absorption edge XAFS studies of Ni-doped PbTe at different temperatures. Analysis of near edge and extended XAFS regions of the measured spectra provided information about exact local environment and lattice ordering around Ni atoms. (C) 2009 Elsevier B.V. All rights reserved.",
journal = "Physica B: Condensed Matter",
title = "XAFS studies of nickel-doped lead telluride",
volume = "404",
number = "23-24",
pages = "5032-5034",
doi = "10.1016/j.physb.2009.08.209"
}

Radisavljević, I., Novaković, N., Ivanović, N., Romčević, N. Ž., Manasijević, M.,& Mahnke, H.. (2009). XAFS studies of nickel-doped lead telluride. in Physica B: Condensed Matter, 404(23-24), 5032-5034.
https://doi.org/10.1016/j.physb.2009.08.209

Radisavljević I, Novaković N, Ivanović N, Romčević NŽ, Manasijević M, Mahnke H. XAFS studies of nickel-doped lead telluride. in Physica B: Condensed Matter. 2009;404(23-24):5032-5034.
doi:10.1016/j.physb.2009.08.209 .

Radisavljević, Ivana, Novaković, Nikola, Ivanović, Nenad, Romčević, Nebojša Ž., Manasijević, Miodrag, Mahnke, Heinz-Eberhard, "XAFS studies of nickel-doped lead telluride" in Physica B: Condensed Matter, 404, no. 23-24 (2009):5032-5034,
https://doi.org/10.1016/j.physb.2009.08.209 . .

TY  - JOUR
AU  - Novaković, Nikola
AU  - Matović, Ljiljana
AU  - Grbović-Novaković, Jasmina
AU  - Manasijević, Miodrag
AU  - Ivanović, Nenad
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6856
AB  - Even if there is considerable literature dealing with structure and properties of MgH2 compound there are still some uncertain details about nature of bonding governing its formation and decomposition. In order to better understand the processes essential for absorption and desorption of MgH2, ab initio DFT based calculations of rutile MgH2 compound, elemental hcp-Mg, and three different hypothetical hcp-Mg-derived hydrides are performed. Our findings show that all structures are unstable, and that MgH (Wurtzite) is a closest possible candidate for intermediate phase between the hcp-Mg and MgH2 at 1:1 stoichiometry. An alternative hydration pathway is suggested, including promotion of hcp-Mg to bcc-Mg and consecutive transformation to rutile MgH2 by means of hydrogen incorporation into Mg matrix. Rutile MgH2 calculations with various hydrogen vacancies concentration are performed. Calculation shows that at high hydrogen concentration close to 1:2, stable substoichiometric hydride is possible. Calculation also shows that high vacancy (low hydrogen) concentration favors bcc-Mg2H over rutile Mg2H structure. (c) 2009 Elsevier B.V. All rights reserved.
T2  - Materials Science and Engineering. B: Advanced Functional Solid-State Materials
T1  - Ab initio study of MgH2 formation
VL  - 165
IS  - 3
SP  - 235
EP  - 238
DO  - 10.1016/j.mseb.2009.06.015
ER  - 

@article{
author = "Novaković, Nikola and Matović, Ljiljana and Grbović-Novaković, Jasmina and Manasijević, Miodrag and Ivanović, Nenad",
year = "2009",
abstract = "Even if there is considerable literature dealing with structure and properties of MgH2 compound there are still some uncertain details about nature of bonding governing its formation and decomposition. In order to better understand the processes essential for absorption and desorption of MgH2, ab initio DFT based calculations of rutile MgH2 compound, elemental hcp-Mg, and three different hypothetical hcp-Mg-derived hydrides are performed. Our findings show that all structures are unstable, and that MgH (Wurtzite) is a closest possible candidate for intermediate phase between the hcp-Mg and MgH2 at 1:1 stoichiometry. An alternative hydration pathway is suggested, including promotion of hcp-Mg to bcc-Mg and consecutive transformation to rutile MgH2 by means of hydrogen incorporation into Mg matrix. Rutile MgH2 calculations with various hydrogen vacancies concentration are performed. Calculation shows that at high hydrogen concentration close to 1:2, stable substoichiometric hydride is possible. Calculation also shows that high vacancy (low hydrogen) concentration favors bcc-Mg2H over rutile Mg2H structure. (c) 2009 Elsevier B.V. All rights reserved.",
journal = "Materials Science and Engineering. B: Advanced Functional Solid-State Materials",
title = "Ab initio study of MgH2 formation",
volume = "165",
number = "3",
pages = "235-238",
doi = "10.1016/j.mseb.2009.06.015"
}

Novaković, N., Matović, L., Grbović-Novaković, J., Manasijević, M.,& Ivanović, N.. (2009). Ab initio study of MgH2 formation. in Materials Science and Engineering. B: Advanced Functional Solid-State Materials, 165(3), 235-238.
https://doi.org/10.1016/j.mseb.2009.06.015

Novaković N, Matović L, Grbović-Novaković J, Manasijević M, Ivanović N. Ab initio study of MgH2 formation. in Materials Science and Engineering. B: Advanced Functional Solid-State Materials. 2009;165(3):235-238.
doi:10.1016/j.mseb.2009.06.015 .

Novaković, Nikola, Matović, Ljiljana, Grbović-Novaković, Jasmina, Manasijević, Miodrag, Ivanović, Nenad, "Ab initio study of MgH2 formation" in Materials Science and Engineering. B: Advanced Functional Solid-State Materials, 165, no. 3 (2009):235-238,
https://doi.org/10.1016/j.mseb.2009.06.015 . .

TY  - JOUR
AU  - Ivanović, Nenad
AU  - Marjanović, Nenad
AU  - Grbović-Novaković, Jasmina
AU  - Manasijević, Miodrag
AU  - Rakočević, Zlatko Lj.
AU  - Andrić, Velibor
AU  - Hadžić, Branka B.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3906
AB  - The main challenge in the large-scale commercial applications of benzocyclobutene (BCB) dielectrics is to perform their curing rapidly and efficiently at low temperatures, and in the same time, to obtain large area, high quality, pinhole free dielectric thin films. For that purpose, we investigated numerous uncured and cured BCB films, approximately 2 mu m thick, spin-coated on glass/ITO surface, using optical and AFM microscopy, infrared (IR) and Raman spectroscopy, and complete these results with appropriate Linear Combination of Atomic Orbitals (LCAO) calculations. That way we relate microscopic characteristics of the involved molecules, and macroscopic properties of the cured and uncured polymers, which is important for their practical applications.
T2  - Materials and Manufacturing Processes
T1  - Experimental and Theoretical Investigations of Cured and Uncured Disiloxane Bisbenzocyclobutene Thin Films
VL  - 24
IS  - 10-11
SP  - 1180
EP  - 1184
DO  - 10.1080/10426910902978811
ER  - 

@article{
author = "Ivanović, Nenad and Marjanović, Nenad and Grbović-Novaković, Jasmina and Manasijević, Miodrag and Rakočević, Zlatko Lj. and Andrić, Velibor and Hadžić, Branka B.",
year = "2009",
abstract = "The main challenge in the large-scale commercial applications of benzocyclobutene (BCB) dielectrics is to perform their curing rapidly and efficiently at low temperatures, and in the same time, to obtain large area, high quality, pinhole free dielectric thin films. For that purpose, we investigated numerous uncured and cured BCB films, approximately 2 mu m thick, spin-coated on glass/ITO surface, using optical and AFM microscopy, infrared (IR) and Raman spectroscopy, and complete these results with appropriate Linear Combination of Atomic Orbitals (LCAO) calculations. That way we relate microscopic characteristics of the involved molecules, and macroscopic properties of the cured and uncured polymers, which is important for their practical applications.",
journal = "Materials and Manufacturing Processes",
title = "Experimental and Theoretical Investigations of Cured and Uncured Disiloxane Bisbenzocyclobutene Thin Films",
volume = "24",
number = "10-11",
pages = "1180-1184",
doi = "10.1080/10426910902978811"
}

Ivanović, N., Marjanović, N., Grbović-Novaković, J., Manasijević, M., Rakočević, Z. Lj., Andrić, V.,& Hadžić, B. B.. (2009). Experimental and Theoretical Investigations of Cured and Uncured Disiloxane Bisbenzocyclobutene Thin Films. in Materials and Manufacturing Processes, 24(10-11), 1180-1184.
https://doi.org/10.1080/10426910902978811

Ivanović N, Marjanović N, Grbović-Novaković J, Manasijević M, Rakočević ZL, Andrić V, Hadžić BB. Experimental and Theoretical Investigations of Cured and Uncured Disiloxane Bisbenzocyclobutene Thin Films. in Materials and Manufacturing Processes. 2009;24(10-11):1180-1184.
doi:10.1080/10426910902978811 .

Ivanović, Nenad, Marjanović, Nenad, Grbović-Novaković, Jasmina, Manasijević, Miodrag, Rakočević, Zlatko Lj., Andrić, Velibor, Hadžić, Branka B., "Experimental and Theoretical Investigations of Cured and Uncured Disiloxane Bisbenzocyclobutene Thin Films" in Materials and Manufacturing Processes, 24, no. 10-11 (2009):1180-1184,
https://doi.org/10.1080/10426910902978811 . .

TY  - JOUR
AU  - Radisavljević, Ivana
AU  - Marjanovic, Dragan
AU  - Novaković, Nikola
AU  - Manasijević, Miodrag
AU  - Ivanović, Nenad
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6729
AB  - Using semi-empirical quantum mechanic and ab initio Hartree-Fock (HF) calculations, we investigated changes induced by doping and addition of side-atoms and groups of P2P-P6P oligophenylenes structure, electronic and optical properties. The results are compared to the existing experimental data and results of similar calculations, and the possible implications for the oligophenylenes-based materials applications have been discussed. (c) 2007 Published by Elsevier B.V.
T2  - Optical Materials
T1  - Possibilities for tuning electronic and optical properties of oligophenylenes by selected chemical influences
VL  - 30
IS  - 7
SP  - 1103
EP  - 1108
DO  - 10.1016/j.optmat.2007.05.020
ER  - 

@article{
author = "Radisavljević, Ivana and Marjanovic, Dragan and Novaković, Nikola and Manasijević, Miodrag and Ivanović, Nenad",
year = "2008",
abstract = "Using semi-empirical quantum mechanic and ab initio Hartree-Fock (HF) calculations, we investigated changes induced by doping and addition of side-atoms and groups of P2P-P6P oligophenylenes structure, electronic and optical properties. The results are compared to the existing experimental data and results of similar calculations, and the possible implications for the oligophenylenes-based materials applications have been discussed. (c) 2007 Published by Elsevier B.V.",
journal = "Optical Materials",
title = "Possibilities for tuning electronic and optical properties of oligophenylenes by selected chemical influences",
volume = "30",
number = "7",
pages = "1103-1108",
doi = "10.1016/j.optmat.2007.05.020"
}

Radisavljević, I., Marjanovic, D., Novaković, N., Manasijević, M.,& Ivanović, N.. (2008). Possibilities for tuning electronic and optical properties of oligophenylenes by selected chemical influences. in Optical Materials, 30(7), 1103-1108.
https://doi.org/10.1016/j.optmat.2007.05.020

Radisavljević I, Marjanovic D, Novaković N, Manasijević M, Ivanović N. Possibilities for tuning electronic and optical properties of oligophenylenes by selected chemical influences. in Optical Materials. 2008;30(7):1103-1108.
doi:10.1016/j.optmat.2007.05.020 .

Radisavljević, Ivana, Marjanovic, Dragan, Novaković, Nikola, Manasijević, Miodrag, Ivanović, Nenad, "Possibilities for tuning electronic and optical properties of oligophenylenes by selected chemical influences" in Optical Materials, 30, no. 7 (2008):1103-1108,
https://doi.org/10.1016/j.optmat.2007.05.020 . .

TY  - JOUR
AU  - Ivanović, Nenad
AU  - Rodić, Dubravko
AU  - Koteski, Vasil J.
AU  - Radisavljević, Ivana
AU  - Novaković, Nikola
AU  - Marjanovic, D
AU  - Manasijević, Miodrag
AU  - Koicki, S
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2986
AB  - It has been established that the 16( c) first coordination clusters in the Ti2Ni structure type ( space group Fd3m) follow icosahedral- face orientational ordering along regular tetrahedron edge directions. The actual crystal structure appears due to the prevalence of the face- centred cubic translational ordering over the cluster assembling. This way, the competition of the ` regular crystal phase and its icosahedral analogue is reconstructed at the atomic level. The model accounts for the markedly different electronic characteristics at the different crystallographic positions obtained by hyperfine interaction measurements, and other curious experimental facts help to create an exact physical definition of the first coordination in the solid state and to distinguish between various structure types on fundamental principles.
T2  - Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials
T1  - Cluster approach to the Ti2Ni structure type
VL  - 62
SP  - 1
EP  - 8
DO  - 10.1107/S010876810503764X
ER  - 

@article{
author = "Ivanović, Nenad and Rodić, Dubravko and Koteski, Vasil J. and Radisavljević, Ivana and Novaković, Nikola and Marjanovic, D and Manasijević, Miodrag and Koicki, S",
year = "2006",
abstract = "It has been established that the 16( c) first coordination clusters in the Ti2Ni structure type ( space group Fd3m) follow icosahedral- face orientational ordering along regular tetrahedron edge directions. The actual crystal structure appears due to the prevalence of the face- centred cubic translational ordering over the cluster assembling. This way, the competition of the ` regular crystal phase and its icosahedral analogue is reconstructed at the atomic level. The model accounts for the markedly different electronic characteristics at the different crystallographic positions obtained by hyperfine interaction measurements, and other curious experimental facts help to create an exact physical definition of the first coordination in the solid state and to distinguish between various structure types on fundamental principles.",
journal = "Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials",
title = "Cluster approach to the Ti2Ni structure type",
volume = "62",
pages = "1-8",
doi = "10.1107/S010876810503764X"
}

Ivanović, N., Rodić, D., Koteski, V. J., Radisavljević, I., Novaković, N., Marjanovic, D., Manasijević, M.,& Koicki, S.. (2006). Cluster approach to the Ti2Ni structure type. in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, 62, 1-8.
https://doi.org/10.1107/S010876810503764X

Ivanović N, Rodić D, Koteski VJ, Radisavljević I, Novaković N, Marjanovic D, Manasijević M, Koicki S. Cluster approach to the Ti2Ni structure type. in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials. 2006;62:1-8.
doi:10.1107/S010876810503764X .

Ivanović, Nenad, Rodić, Dubravko, Koteski, Vasil J., Radisavljević, Ivana, Novaković, Nikola, Marjanovic, D, Manasijević, Miodrag, Koicki, S, "Cluster approach to the Ti2Ni structure type" in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, 62 (2006):1-8,
https://doi.org/10.1107/S010876810503764X . .

TY  - CONF
AU  - Belošević-Čavor, Jelena
AU  - Cekić, Božidar Đ.
AU  - Novaković, Nikola
AU  - Ivanović, Nenad
AU  - Manasijević, Miodrag
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6420
AB  - Hyperfine fields (HFF) in a polycrystalline HtFe(2) binary compound were measured at Ta-181 probe ion sites using the time differential perturbed angular correlation (TDPAC) method. Analysis of TDPAC spectra obtained in measurements revealed two components. One of them corresponded to the magnetic perturbation with the value B-hfl (Ta) = 13.82(7) T at room temperature and it was ascribed to the interaction at the regular position of Hf in the cubic C15 (MgCu2-type) structure of the HfFe2 compound. The second component with hyperfine field value of B-hf2 (Ta) = 8.0(2) T is probably due to the presence of a minor amount of the hexagonal C14 (MgZn2-type) structure. Measurements showed that it had come to a change in the ratio of different components of TDPAC spectra with annealing but the values for hyperfine fields for both components have not changed significantly. The origin of the hyperfine magnetic field and its difference in the two Structures (C14 and C15) were discussed taking into account crystal structure effects.
PB  - Materials Science Forum
C3  - Progress in Advanced Materials and Processes : Proceedings of the Fifth Yugoslav Materials Research Society, YUCOMAT V
T1  - Influence of annealing on structure and magnetic properties of laves phase HfFe2
VL  - 453-454
SP  - 89
EP  - 92
DO  - 10.4028/www.scientific.net/MSF.453-454.89
ER  - 

@conference{
author = "Belošević-Čavor, Jelena and Cekić, Božidar Đ. and Novaković, Nikola and Ivanović, Nenad and Manasijević, Miodrag",
year = "2004",
abstract = "Hyperfine fields (HFF) in a polycrystalline HtFe(2) binary compound were measured at Ta-181 probe ion sites using the time differential perturbed angular correlation (TDPAC) method. Analysis of TDPAC spectra obtained in measurements revealed two components. One of them corresponded to the magnetic perturbation with the value B-hfl (Ta) = 13.82(7) T at room temperature and it was ascribed to the interaction at the regular position of Hf in the cubic C15 (MgCu2-type) structure of the HfFe2 compound. The second component with hyperfine field value of B-hf2 (Ta) = 8.0(2) T is probably due to the presence of a minor amount of the hexagonal C14 (MgZn2-type) structure. Measurements showed that it had come to a change in the ratio of different components of TDPAC spectra with annealing but the values for hyperfine fields for both components have not changed significantly. The origin of the hyperfine magnetic field and its difference in the two Structures (C14 and C15) were discussed taking into account crystal structure effects.",
publisher = "Materials Science Forum",
journal = "Progress in Advanced Materials and Processes : Proceedings of the Fifth Yugoslav Materials Research Society, YUCOMAT V",
title = "Influence of annealing on structure and magnetic properties of laves phase HfFe2",
volume = "453-454",
pages = "89-92",
doi = "10.4028/www.scientific.net/MSF.453-454.89"
}

Belošević-Čavor, J., Cekić, B. Đ., Novaković, N., Ivanović, N.,& Manasijević, M.. (2004). Influence of annealing on structure and magnetic properties of laves phase HfFe2. in Progress in Advanced Materials and Processes : Proceedings of the Fifth Yugoslav Materials Research Society, YUCOMAT V
Materials Science Forum., 453-454, 89-92.
https://doi.org/10.4028/www.scientific.net/MSF.453-454.89

Belošević-Čavor J, Cekić BĐ, Novaković N, Ivanović N, Manasijević M. Influence of annealing on structure and magnetic properties of laves phase HfFe2. in Progress in Advanced Materials and Processes : Proceedings of the Fifth Yugoslav Materials Research Society, YUCOMAT V. 2004;453-454:89-92.
doi:10.4028/www.scientific.net/MSF.453-454.89 .

Belošević-Čavor, Jelena, Cekić, Božidar Đ., Novaković, Nikola, Ivanović, Nenad, Manasijević, Miodrag, "Influence of annealing on structure and magnetic properties of laves phase HfFe2" in Progress in Advanced Materials and Processes : Proceedings of the Fifth Yugoslav Materials Research Society, YUCOMAT V, 453-454 (2004):89-92,
https://doi.org/10.4028/www.scientific.net/MSF.453-454.89 . .

TY  - JOUR
AU  - Belošević-Čavor, Jelena
AU  - Novaković, Nikola
AU  - Cekić, Božidar Đ.
AU  - Ivanović, Nenad
AU  - Manasijević, Miodrag
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7757
AB  - Hyperfine fields in HfFe2 were measured at 181Ta probe using the time-differential perturbed angular correlation method (TDPAC) in the temperature range 78-1200K. Analysis of the spectra revealed two interactions with hyperfine fields of 13.82(7) T and 8.0(2) T, at 293K. First is ascribed to the interaction at the 8a position in the cubic C15 structure. The second can be assigned to a minor amount of hexagonal C14 phase, or to an irregular position of the probe in the C15 lattice. Results of calculations using LAPW-WIEN97 are in a good agreement with experiment.
T2  - Journal of Magnetism and Magnetic Materials
T1  - Hyperfine spectroscopic study of Laves phase HfFe2
VL  - 272-276
SP  - 762
EP  - 763
DO  - 10.1016/j.jmmm.2003.11.235
ER  - 

@article{
author = "Belošević-Čavor, Jelena and Novaković, Nikola and Cekić, Božidar Đ. and Ivanović, Nenad and Manasijević, Miodrag",
year = "2004",
abstract = "Hyperfine fields in HfFe2 were measured at 181Ta probe using the time-differential perturbed angular correlation method (TDPAC) in the temperature range 78-1200K. Analysis of the spectra revealed two interactions with hyperfine fields of 13.82(7) T and 8.0(2) T, at 293K. First is ascribed to the interaction at the 8a position in the cubic C15 structure. The second can be assigned to a minor amount of hexagonal C14 phase, or to an irregular position of the probe in the C15 lattice. Results of calculations using LAPW-WIEN97 are in a good agreement with experiment.",
journal = "Journal of Magnetism and Magnetic Materials",
title = "Hyperfine spectroscopic study of Laves phase HfFe2",
volume = "272-276",
pages = "762-763",
doi = "10.1016/j.jmmm.2003.11.235"
}

Belošević-Čavor, J., Novaković, N., Cekić, B. Đ., Ivanović, N.,& Manasijević, M.. (2004). Hyperfine spectroscopic study of Laves phase HfFe2. in Journal of Magnetism and Magnetic Materials, 272-276, 762-763.
https://doi.org/10.1016/j.jmmm.2003.11.235

Belošević-Čavor J, Novaković N, Cekić BĐ, Ivanović N, Manasijević M. Hyperfine spectroscopic study of Laves phase HfFe2. in Journal of Magnetism and Magnetic Materials. 2004;272-276:762-763.
doi:10.1016/j.jmmm.2003.11.235 .

Belošević-Čavor, Jelena, Novaković, Nikola, Cekić, Božidar Đ., Ivanović, Nenad, Manasijević, Miodrag, "Hyperfine spectroscopic study of Laves phase HfFe2" in Journal of Magnetism and Magnetic Materials, 272-276 (2004):762-763,
https://doi.org/10.1016/j.jmmm.2003.11.235 . .

TY  - JOUR
AU  - Cekić, Božidar Đ.
AU  - Ivanović, Nenad
AU  - Koteski, Vasil J.
AU  - Koicki, S
AU  - Manasijević, Miodrag
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2802
AB  - The results of high resolution TDPAC measurements of electric quadrupole interaction (EQI) at the Ta-181 probe ion in the polycrystalline intermetallic compound Hf2Co of the Ti2Ni structure type, in a temperature range from 77 to 1200 K, are presented. The results show the presence of two independent EQIs. At room temperature their frequencies are omegaQ(1) = 36(3) Mrad s(-1) at the 16c, and omega(Q2) = 230(3) Mrad s(-1) at the 48f position. The low frequency interaction is characterized by an unusual temperature dependence which shows a pronounced maximum. The temperature dependence of all relevant physical parameters (the electric field gradient (EFG) principal component V-ZZ, the EFG distribution parameter 6, the asymmetry parameter eta, and the fractions of ions contributing to the specific interaction) are also presented. In addition, the EFG parameters of the same structure are calculated using the full-potential linearized augmented plane-wave (FP-LAPW) method as implemented in the WIEN97 package, and the results are compared with the measured data and some previous calculations obtained using the full-potential linear muffin-tin orbital (FP-LMTO) method in the atomic sphere approximation (ASA).
T2  - Journal of Physics: Condensed Matter
T1  - The electronic structure of Hf2Co: perturbed angular correlation study and first principle calculations
VL  - 16
IS  - 18
SP  - 3015
EP  - 3026
DO  - 10.1088/0953-8984/16/18/002
ER  - 

@article{
author = "Cekić, Božidar Đ. and Ivanović, Nenad and Koteski, Vasil J. and Koicki, S and Manasijević, Miodrag",
year = "2004",
abstract = "The results of high resolution TDPAC measurements of electric quadrupole interaction (EQI) at the Ta-181 probe ion in the polycrystalline intermetallic compound Hf2Co of the Ti2Ni structure type, in a temperature range from 77 to 1200 K, are presented. The results show the presence of two independent EQIs. At room temperature their frequencies are omegaQ(1) = 36(3) Mrad s(-1) at the 16c, and omega(Q2) = 230(3) Mrad s(-1) at the 48f position. The low frequency interaction is characterized by an unusual temperature dependence which shows a pronounced maximum. The temperature dependence of all relevant physical parameters (the electric field gradient (EFG) principal component V-ZZ, the EFG distribution parameter 6, the asymmetry parameter eta, and the fractions of ions contributing to the specific interaction) are also presented. In addition, the EFG parameters of the same structure are calculated using the full-potential linearized augmented plane-wave (FP-LAPW) method as implemented in the WIEN97 package, and the results are compared with the measured data and some previous calculations obtained using the full-potential linear muffin-tin orbital (FP-LMTO) method in the atomic sphere approximation (ASA).",
journal = "Journal of Physics: Condensed Matter",
title = "The electronic structure of Hf2Co: perturbed angular correlation study and first principle calculations",
volume = "16",
number = "18",
pages = "3015-3026",
doi = "10.1088/0953-8984/16/18/002"
}

Cekić, B. Đ., Ivanović, N., Koteski, V. J., Koicki, S.,& Manasijević, M.. (2004). The electronic structure of Hf2Co: perturbed angular correlation study and first principle calculations. in Journal of Physics: Condensed Matter, 16(18), 3015-3026.
https://doi.org/10.1088/0953-8984/16/18/002

Cekić BĐ, Ivanović N, Koteski VJ, Koicki S, Manasijević M. The electronic structure of Hf2Co: perturbed angular correlation study and first principle calculations. in Journal of Physics: Condensed Matter. 2004;16(18):3015-3026.
doi:10.1088/0953-8984/16/18/002 .

Cekić, Božidar Đ., Ivanović, Nenad, Koteski, Vasil J., Koicki, S, Manasijević, Miodrag, "The electronic structure of Hf2Co: perturbed angular correlation study and first principle calculations" in Journal of Physics: Condensed Matter, 16, no. 18 (2004):3015-3026,
https://doi.org/10.1088/0953-8984/16/18/002 . .

TY  - JOUR
AU  - Belošević-Čavor, Jelena
AU  - Ivanović, Nenad
AU  - Babić, Dragan
AU  - Andrić, Velibor
AU  - Novaković, Nikola
AU  - Radisavljević, Ivana
AU  - Cekić, Božidar Đ.
AU  - Manasijević, Miodrag
AU  - Milošević, Zoran
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6353
AB  - X-ray fluorescence and DTA-specific heat measurements were performed on several samples of the Hf-Fe phase system, at 50:50%, and 33:67% concentrations. In the first concentration range the possibility of an ordered compound formation has still been unresolved. In the second, a strong dependence of structure and magnetic properties on various external parameters has been found. The presented investigations provide some additional data about the concentration and temperature dependence of structural and magnetic stability in these two particularly interesting domains of concentration of the system.
T2  - Materials Science Forum
T1  - Concentration and temperature stability of some structural and magnetic phases in the Hf-Fe system
VL  - 413
SP  - 175
EP  - 178
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6353
ER  - 

@article{
author = "Belošević-Čavor, Jelena and Ivanović, Nenad and Babić, Dragan and Andrić, Velibor and Novaković, Nikola and Radisavljević, Ivana and Cekić, Božidar Đ. and Manasijević, Miodrag and Milošević, Zoran",
year = "2003",
abstract = "X-ray fluorescence and DTA-specific heat measurements were performed on several samples of the Hf-Fe phase system, at 50:50%, and 33:67% concentrations. In the first concentration range the possibility of an ordered compound formation has still been unresolved. In the second, a strong dependence of structure and magnetic properties on various external parameters has been found. The presented investigations provide some additional data about the concentration and temperature dependence of structural and magnetic stability in these two particularly interesting domains of concentration of the system.",
journal = "Materials Science Forum",
title = "Concentration and temperature stability of some structural and magnetic phases in the Hf-Fe system",
volume = "413",
pages = "175-178",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6353"
}

Belošević-Čavor, J., Ivanović, N., Babić, D., Andrić, V., Novaković, N., Radisavljević, I., Cekić, B. Đ., Manasijević, M.,& Milošević, Z.. (2003). Concentration and temperature stability of some structural and magnetic phases in the Hf-Fe system. in Materials Science Forum, 413, 175-178.
https://hdl.handle.net/21.15107/rcub_vinar_6353

Belošević-Čavor J, Ivanović N, Babić D, Andrić V, Novaković N, Radisavljević I, Cekić BĐ, Manasijević M, Milošević Z. Concentration and temperature stability of some structural and magnetic phases in the Hf-Fe system. in Materials Science Forum. 2003;413:175-178.
https://hdl.handle.net/21.15107/rcub_vinar_6353 .

Belošević-Čavor, Jelena, Ivanović, Nenad, Babić, Dragan, Andrić, Velibor, Novaković, Nikola, Radisavljević, Ivana, Cekić, Božidar Đ., Manasijević, Miodrag, Milošević, Zoran, "Concentration and temperature stability of some structural and magnetic phases in the Hf-Fe system" in Materials Science Forum, 413 (2003):175-178,
https://hdl.handle.net/21.15107/rcub_vinar_6353 .

TY  - CONF
AU  - Ajdacic, V
AU  - Bikit, Ištvan S.
AU  - Manasijević, Miodrag
AU  - Radak, Bojan
AU  - Slivka, Jaroslav
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6470
AB  - This article reflects a partial resume of research in applied nuclear physics performed in our country during the last 50 years. As the first example we can quote the successes of B. Lalovic and V. Ajdacic in developing and applying new instrumentation for nuclear measurements. V. Ajdacic developed the long pipe method for the absolute measurement of neutron flux in power reactors. Together with B. Lalovic, he managed, among the first few people in the world, to produce semiconductor Ge(Li) spectrometers. Practically all of the measuring equipment currently being used by the Novi Sad nuclear physics group has been purchased with funds obtained for radioecological investigations, so that actually the applied nuclear spectroscopy kept alive the experimental work. Background reduction, sensitivity increase, detection efficiency calibration and development of coincidence techniques are research directions through which this group tries to measure as low as possible radionuclide concentrations, as well as the probability of exotic rare nuclear processes. Very strong radiation sources in Vinca have been used for some decades for sterilization of food and medical equipment. Hyperfine interactions of nuclei with the electric and magnetic fields of their crystal environment give extensive possibilities to investigate phenomena in solid-state physics and new materials. The highly advanced techniques of perturbed angular correlations and Mossbauer spectroscopy were adopted here as bridges between nuclear and condensed matter physics. The bridges are partly destroyed, partly still standing, but almost nobody passes them.
T1  - Applied nuclear physics
VL  - 104
SP  - 19
EP  - 33
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6470
ER  - 

@conference{
author = "Ajdacic, V and Bikit, Ištvan S. and Manasijević, Miodrag and Radak, Bojan and Slivka, Jaroslav",
year = "2002",
abstract = "This article reflects a partial resume of research in applied nuclear physics performed in our country during the last 50 years. As the first example we can quote the successes of B. Lalovic and V. Ajdacic in developing and applying new instrumentation for nuclear measurements. V. Ajdacic developed the long pipe method for the absolute measurement of neutron flux in power reactors. Together with B. Lalovic, he managed, among the first few people in the world, to produce semiconductor Ge(Li) spectrometers. Practically all of the measuring equipment currently being used by the Novi Sad nuclear physics group has been purchased with funds obtained for radioecological investigations, so that actually the applied nuclear spectroscopy kept alive the experimental work. Background reduction, sensitivity increase, detection efficiency calibration and development of coincidence techniques are research directions through which this group tries to measure as low as possible radionuclide concentrations, as well as the probability of exotic rare nuclear processes. Very strong radiation sources in Vinca have been used for some decades for sterilization of food and medical equipment. Hyperfine interactions of nuclei with the electric and magnetic fields of their crystal environment give extensive possibilities to investigate phenomena in solid-state physics and new materials. The highly advanced techniques of perturbed angular correlations and Mossbauer spectroscopy were adopted here as bridges between nuclear and condensed matter physics. The bridges are partly destroyed, partly still standing, but almost nobody passes them.",
title = "Applied nuclear physics",
volume = "104",
pages = "19-33",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6470"
}

Ajdacic, V., Bikit, I. S., Manasijević, M., Radak, B.,& Slivka, J.. (2002). Applied nuclear physics. , 104, 19-33.
https://hdl.handle.net/21.15107/rcub_vinar_6470

Ajdacic V, Bikit IS, Manasijević M, Radak B, Slivka J. Applied nuclear physics. 2002;104:19-33.
https://hdl.handle.net/21.15107/rcub_vinar_6470 .

Ajdacic, V, Bikit, Ištvan S., Manasijević, Miodrag, Radak, Bojan, Slivka, Jaroslav, "Applied nuclear physics", 104 (2002):19-33,
https://hdl.handle.net/21.15107/rcub_vinar_6470 .

TY  - JOUR
AU  - Ivanović, Nenad
AU  - Rodić, Dubravko
AU  - Cekić, Božidar Đ.
AU  - Manasijević, Miodrag
AU  - Koteski, Vasil J.
AU  - Koicki, S
AU  - Marjanovic, D
PY  - 2000
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6314
AB  - Some properties of the Hf-X (X-transition metal) systems obtained by x-ray diffraction, hyperfine interaction measurements by time differential perturbed angular correlations of gamma rays (TDPAC), and Faraday method magnetic susceptibility chi measurements, are investigated. Special attention is paid to the influence of the ordering of the X ions microstructure and their arrangement in the crystal lattice, on the magnetic properties of the Hf-X systems. Its shown up that X ions in the systems with different crystal structures (Ti2Ni, MgCu2, quasicrystalline) form almost identical, close-packed tetrahedral microstructures, but that their arrangement in the crystal lattice is essentially different. Obtained results suggest that besides the mentioned arrangement of the X-ions microstructures, magnitude of Hf-X e.g. X-X coupling substantially influence the magnetic properties of the systems.
T2  - Materials Science Forum
T1  - The influence of the transition metal atoms (X) microstructural ordering on the magnetic properties of the Hf-X systems
VL  - 352
SP  - 261
EP  - 265
DO  - 10.4028/www.scientific.net/MSF.352.261
ER  - 

@article{
author = "Ivanović, Nenad and Rodić, Dubravko and Cekić, Božidar Đ. and Manasijević, Miodrag and Koteski, Vasil J. and Koicki, S and Marjanovic, D",
year = "2000",
abstract = "Some properties of the Hf-X (X-transition metal) systems obtained by x-ray diffraction, hyperfine interaction measurements by time differential perturbed angular correlations of gamma rays (TDPAC), and Faraday method magnetic susceptibility chi measurements, are investigated. Special attention is paid to the influence of the ordering of the X ions microstructure and their arrangement in the crystal lattice, on the magnetic properties of the Hf-X systems. Its shown up that X ions in the systems with different crystal structures (Ti2Ni, MgCu2, quasicrystalline) form almost identical, close-packed tetrahedral microstructures, but that their arrangement in the crystal lattice is essentially different. Obtained results suggest that besides the mentioned arrangement of the X-ions microstructures, magnitude of Hf-X e.g. X-X coupling substantially influence the magnetic properties of the systems.",
journal = "Materials Science Forum",
title = "The influence of the transition metal atoms (X) microstructural ordering on the magnetic properties of the Hf-X systems",
volume = "352",
pages = "261-265",
doi = "10.4028/www.scientific.net/MSF.352.261"
}

Ivanović, N., Rodić, D., Cekić, B. Đ., Manasijević, M., Koteski, V. J., Koicki, S.,& Marjanovic, D.. (2000). The influence of the transition metal atoms (X) microstructural ordering on the magnetic properties of the Hf-X systems. in Materials Science Forum, 352, 261-265.
https://doi.org/10.4028/www.scientific.net/MSF.352.261

Ivanović N, Rodić D, Cekić BĐ, Manasijević M, Koteski VJ, Koicki S, Marjanovic D. The influence of the transition metal atoms (X) microstructural ordering on the magnetic properties of the Hf-X systems. in Materials Science Forum. 2000;352:261-265.
doi:10.4028/www.scientific.net/MSF.352.261 .

Ivanović, Nenad, Rodić, Dubravko, Cekić, Božidar Đ., Manasijević, Miodrag, Koteski, Vasil J., Koicki, S, Marjanovic, D, "The influence of the transition metal atoms (X) microstructural ordering on the magnetic properties of the Hf-X systems" in Materials Science Forum, 352 (2000):261-265,
https://doi.org/10.4028/www.scientific.net/MSF.352.261 . .

TY  - JOUR
AU  - Ivanović, Nenad
AU  - Koicki, S
AU  - Cekić, Božidar Đ.
AU  - Manasijević, Miodrag
AU  - Koteski, Vasil J.
AU  - Marjanovic, D
PY  - 1999
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2226
AB  - The time differential perturbed angular correlation technique has been used to measure the electric field gradient at Ta-181 impurities in the intermetallic compound Hf2Rh. The results of the measurements show the presence of tare independent quadrupole interactions. At room temperature the interaction frequencies are omega(Q1) = 58 Mrad s(-1) and w(Q2) = 239 Mrad s(-1). The electric field gradient V-zz, the corresponding asymmetry parameter eta and the distribution parameter delta exhibit a pronounced temperature dependence from 78 to 1223 K.
T2  - Journal of Physics: Condensed Matter
T1  - The nuclear quadrupole interaction of Ta-181 in the intermetallic compound Hf2Rh
VL  - 11
IS  - 1
SP  - 289
EP  - 297
DO  - 10.1088/0953-8984/11/1/023
ER  - 

@article{
author = "Ivanović, Nenad and Koicki, S and Cekić, Božidar Đ. and Manasijević, Miodrag and Koteski, Vasil J. and Marjanovic, D",
year = "1999",
abstract = "The time differential perturbed angular correlation technique has been used to measure the electric field gradient at Ta-181 impurities in the intermetallic compound Hf2Rh. The results of the measurements show the presence of tare independent quadrupole interactions. At room temperature the interaction frequencies are omega(Q1) = 58 Mrad s(-1) and w(Q2) = 239 Mrad s(-1). The electric field gradient V-zz, the corresponding asymmetry parameter eta and the distribution parameter delta exhibit a pronounced temperature dependence from 78 to 1223 K.",
journal = "Journal of Physics: Condensed Matter",
title = "The nuclear quadrupole interaction of Ta-181 in the intermetallic compound Hf2Rh",
volume = "11",
number = "1",
pages = "289-297",
doi = "10.1088/0953-8984/11/1/023"
}

Ivanović, N., Koicki, S., Cekić, B. Đ., Manasijević, M., Koteski, V. J.,& Marjanovic, D.. (1999). The nuclear quadrupole interaction of Ta-181 in the intermetallic compound Hf2Rh. in Journal of Physics: Condensed Matter, 11(1), 289-297.
https://doi.org/10.1088/0953-8984/11/1/023

Ivanović N, Koicki S, Cekić BĐ, Manasijević M, Koteski VJ, Marjanovic D. The nuclear quadrupole interaction of Ta-181 in the intermetallic compound Hf2Rh. in Journal of Physics: Condensed Matter. 1999;11(1):289-297.
doi:10.1088/0953-8984/11/1/023 .

Ivanović, Nenad, Koicki, S, Cekić, Božidar Đ., Manasijević, Miodrag, Koteski, Vasil J., Marjanovic, D, "The nuclear quadrupole interaction of Ta-181 in the intermetallic compound Hf2Rh" in Journal of Physics: Condensed Matter, 11, no. 1 (1999):289-297,
https://doi.org/10.1088/0953-8984/11/1/023 . .

TY  - JOUR
AU  - Cekić, Božidar Đ.
AU  - Ivanović, Nenad
AU  - Rakočević, Zlatko Lj.
AU  - Koteski, Vasil J.
AU  - Manasijević, Miodrag
AU  - Koiki, S
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2199
AB  - The grain structure and interatomic distances in annealed Hf2Fe, as well as in nonannealed and annealed Hf2Co polycrystalline isostructural phases, with unit cells of the Ti2Ni type, ale studied using scanning tunneling microscopy (STM) in air. In contrast to x-ray powder diffraction data, refined according to the Rietveld profile method, STM measurements show discrepancies between compounds, caused by the peculiarities of their electronic structure. The results obtained give better insight into the extensive electric field gradient measurements performed in this class of compounds, which could not be properly explained by the existing crystallographic data alone. (C) 1998 American Institute of Physics. [S0021-8979(98)05421-8].
T2  - Journal of Applied Physics
T1  - Structure and bond length distribution in Hf2Fe and Hf2Co intermetallic compounds
VL  - 84
IS  - 9
SP  - 4842
EP  - 4846
DO  - 10.1063/1.368726
ER  - 

@article{
author = "Cekić, Božidar Đ. and Ivanović, Nenad and Rakočević, Zlatko Lj. and Koteski, Vasil J. and Manasijević, Miodrag and Koiki, S",
year = "1998",
abstract = "The grain structure and interatomic distances in annealed Hf2Fe, as well as in nonannealed and annealed Hf2Co polycrystalline isostructural phases, with unit cells of the Ti2Ni type, ale studied using scanning tunneling microscopy (STM) in air. In contrast to x-ray powder diffraction data, refined according to the Rietveld profile method, STM measurements show discrepancies between compounds, caused by the peculiarities of their electronic structure. The results obtained give better insight into the extensive electric field gradient measurements performed in this class of compounds, which could not be properly explained by the existing crystallographic data alone. (C) 1998 American Institute of Physics. [S0021-8979(98)05421-8].",
journal = "Journal of Applied Physics",
title = "Structure and bond length distribution in Hf2Fe and Hf2Co intermetallic compounds",
volume = "84",
number = "9",
pages = "4842-4846",
doi = "10.1063/1.368726"
}

Cekić, B. Đ., Ivanović, N., Rakočević, Z. Lj., Koteski, V. J., Manasijević, M.,& Koiki, S.. (1998). Structure and bond length distribution in Hf2Fe and Hf2Co intermetallic compounds. in Journal of Applied Physics, 84(9), 4842-4846.
https://doi.org/10.1063/1.368726

Cekić BĐ, Ivanović N, Rakočević ZL, Koteski VJ, Manasijević M, Koiki S. Structure and bond length distribution in Hf2Fe and Hf2Co intermetallic compounds. in Journal of Applied Physics. 1998;84(9):4842-4846.
doi:10.1063/1.368726 .

Cekić, Božidar Đ., Ivanović, Nenad, Rakočević, Zlatko Lj., Koteski, Vasil J., Manasijević, Miodrag, Koiki, S, "Structure and bond length distribution in Hf2Fe and Hf2Co intermetallic compounds" in Journal of Applied Physics, 84, no. 9 (1998):4842-4846,
https://doi.org/10.1063/1.368726 . .

TY  - JOUR
AU  - Koicki, S
AU  - Manasijević, Miodrag
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7200
AB  - Perturbed angular correlation (PAC) has for many years been a productive experimental technique for obtaining information about the static and dynamic behaviour oi local and electronic structures of solids on a microscopic scale, without changing the main properties of the material. This article contains an outline of the basic principles of PAC. A summary of the technique and experimental requirements is given, followed by a brief discussion of the parameters which can be extracted from the PAC measurements. Some examples, then, illustrate the recent developments in the applications to the problems of interest fur materials science, mainly performed at VINCA Institute.
T2  - Materials Science Forum
T1  - Perturbed angular correlation technique in materials science
VL  - 214
SP  - 1
EP  - 10
DO  - 10.4028/www.scientific.net/MSF.214.1
ER  - 

@article{
author = "Koicki, S and Manasijević, Miodrag",
year = "1996",
abstract = "Perturbed angular correlation (PAC) has for many years been a productive experimental technique for obtaining information about the static and dynamic behaviour oi local and electronic structures of solids on a microscopic scale, without changing the main properties of the material. This article contains an outline of the basic principles of PAC. A summary of the technique and experimental requirements is given, followed by a brief discussion of the parameters which can be extracted from the PAC measurements. Some examples, then, illustrate the recent developments in the applications to the problems of interest fur materials science, mainly performed at VINCA Institute.",
journal = "Materials Science Forum",
title = "Perturbed angular correlation technique in materials science",
volume = "214",
pages = "1-10",
doi = "10.4028/www.scientific.net/MSF.214.1"
}

Koicki, S.,& Manasijević, M.. (1996). Perturbed angular correlation technique in materials science. in Materials Science Forum, 214, 1-10.
https://doi.org/10.4028/www.scientific.net/MSF.214.1

Koicki S, Manasijević M. Perturbed angular correlation technique in materials science. in Materials Science Forum. 1996;214:1-10.
doi:10.4028/www.scientific.net/MSF.214.1 .

Koicki, S, Manasijević, Miodrag, "Perturbed angular correlation technique in materials science" in Materials Science Forum, 214 (1996):1-10,
https://doi.org/10.4028/www.scientific.net/MSF.214.1 . .