TY  - JOUR
AU  - Zentkova, M.
AU  - Mihalik, Marian
AU  - Mihalik, Jr., M.
AU  - Kovalik, M
AU  - Perović, Marija M.
AU  - Vavra, M.
AU  - Briančin, J.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9085
AB  - Annealing of_ non stoichiometric La0.80Ag0.15MnO3 nanoparticles leads to the change of the crystal symmetry from Pnma to R3c and to almost doubling of its Curie temperature from 117 K to 317 K. This effect is due to the releasing of lattice distortions and strengthening of double exchange interaction. The large values of the magnetocaloric entropy of the order of ∆S = 6.19 J/(kg K) were observedat ∆µ0H = 5 T and T = 315 K.
T2  - Acta Physica Polonica A
T1  - Crystal Structure and Magnetocaloric Effect of La0.80Ag0.15MnO3 Nanoparticles
VL  - 137
IS  - 5
SP  - 900
EP  - 903
DO  - 10.12693/APhysPolA.137.900
ER  - 

@article{
author = "Zentkova, M. and Mihalik, Marian and Mihalik, Jr., M. and Kovalik, M and Perović, Marija M. and Vavra, M. and Briančin, J.",
year = "2020",
abstract = "Annealing of_ non stoichiometric La0.80Ag0.15MnO3 nanoparticles leads to the change of the crystal symmetry from Pnma to R3c and to almost doubling of its Curie temperature from 117 K to 317 K. This effect is due to the releasing of lattice distortions and strengthening of double exchange interaction. The large values of the magnetocaloric entropy of the order of ∆S = 6.19 J/(kg K) were observedat ∆µ0H = 5 T and T = 315 K.",
journal = "Acta Physica Polonica A",
title = "Crystal Structure and Magnetocaloric Effect of La0.80Ag0.15MnO3 Nanoparticles",
volume = "137",
number = "5",
pages = "900-903",
doi = "10.12693/APhysPolA.137.900"
}

Zentkova, M., Mihalik, M., Mihalik, Jr., M., Kovalik, M., Perović, M. M., Vavra, M.,& Briančin, J.. (2020). Crystal Structure and Magnetocaloric Effect of La0.80Ag0.15MnO3 Nanoparticles. in Acta Physica Polonica A, 137(5), 900-903.
https://doi.org/10.12693/APhysPolA.137.900

Zentkova M, Mihalik M, Mihalik JM, Kovalik M, Perović MM, Vavra M, Briančin J. Crystal Structure and Magnetocaloric Effect of La0.80Ag0.15MnO3 Nanoparticles. in Acta Physica Polonica A. 2020;137(5):900-903.
doi:10.12693/APhysPolA.137.900 .

Zentkova, M., Mihalik, Marian, Mihalik, Jr., M., Kovalik, M, Perović, Marija M., Vavra, M., Briančin, J., "Crystal Structure and Magnetocaloric Effect of La0.80Ag0.15MnO3 Nanoparticles" in Acta Physica Polonica A, 137, no. 5 (2020):900-903,
https://doi.org/10.12693/APhysPolA.137.900 . .

TY  - JOUR
AU  - Vavra, M.
AU  - Zentkova, M.
AU  - Mihalik, M.
AU  - Mihalik, Jr., M.
AU  - Lazurova, J.
AU  - Girman, V.
AU  - Perović, Marija M.
AU  - Kusigerski, Vladan
AU  - Roupcova, P.
AU  - Jagličić, Zvonko
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7162
AB  - We study the effect of nanometric size on the crystal structure, magnetic environment of iron and magnetization in NdFeO3 system of nanoparticles. The average particle size of NdFeO3 nanoparticles increases with annealing at 600 degrees C from about 15 nm to 40 nm, The smallest particles on annealed sample have size approximately 30 nm and typically have character of single crystalline samples. All samples adopt orthorhombic crystal structure, space group Prima with lattice parameters a = 5.5817 angstrom, b = 7.7663 angstrom and c = 5.456 angstrom for as prepared sample. The presence of superparamagnetic particles was indicated by the Mossbauer measurements. The reduction of dimensionality induces a decrease of T-N1 from 691 K to 544 K. The shift of magnetic hysteresis loop in vertical and horizontal direction was observed at low temperatures after cooling in magnetic field. We attribute such behaviour to exchange bias effect and discuss in the frame of core shellmodel.
T2  - Acta Physica Polonica A
T1  - Exchange Bias Effect in NdFeO3 System of Nanoparticles
VL  - 131
IS  - 4
SP  - 869
EP  - 871
DO  - 10.12693/APhysPolA.131.869
ER  - 

@article{
author = "Vavra, M. and Zentkova, M. and Mihalik, M. and Mihalik, Jr., M. and Lazurova, J. and Girman, V. and Perović, Marija M. and Kusigerski, Vladan and Roupcova, P. and Jagličić, Zvonko",
year = "2017",
abstract = "We study the effect of nanometric size on the crystal structure, magnetic environment of iron and magnetization in NdFeO3 system of nanoparticles. The average particle size of NdFeO3 nanoparticles increases with annealing at 600 degrees C from about 15 nm to 40 nm, The smallest particles on annealed sample have size approximately 30 nm and typically have character of single crystalline samples. All samples adopt orthorhombic crystal structure, space group Prima with lattice parameters a = 5.5817 angstrom, b = 7.7663 angstrom and c = 5.456 angstrom for as prepared sample. The presence of superparamagnetic particles was indicated by the Mossbauer measurements. The reduction of dimensionality induces a decrease of T-N1 from 691 K to 544 K. The shift of magnetic hysteresis loop in vertical and horizontal direction was observed at low temperatures after cooling in magnetic field. We attribute such behaviour to exchange bias effect and discuss in the frame of core shellmodel.",
journal = "Acta Physica Polonica A",
title = "Exchange Bias Effect in NdFeO3 System of Nanoparticles",
volume = "131",
number = "4",
pages = "869-871",
doi = "10.12693/APhysPolA.131.869"
}

Vavra, M., Zentkova, M., Mihalik, M., Mihalik, Jr., M., Lazurova, J., Girman, V., Perović, M. M., Kusigerski, V., Roupcova, P.,& Jagličić, Z.. (2017). Exchange Bias Effect in NdFeO3 System of Nanoparticles. in Acta Physica Polonica A, 131(4), 869-871.
https://doi.org/10.12693/APhysPolA.131.869

Vavra M, Zentkova M, Mihalik M, Mihalik JM, Lazurova J, Girman V, Perović MM, Kusigerski V, Roupcova P, Jagličić Z. Exchange Bias Effect in NdFeO3 System of Nanoparticles. in Acta Physica Polonica A. 2017;131(4):869-871.
doi:10.12693/APhysPolA.131.869 .

Vavra, M., Zentkova, M., Mihalik, M., Mihalik, Jr., M., Lazurova, J., Girman, V., Perović, Marija M., Kusigerski, Vladan, Roupcova, P., Jagličić, Zvonko, "Exchange Bias Effect in NdFeO3 System of Nanoparticles" in Acta Physica Polonica A, 131, no. 4 (2017):869-871,
https://doi.org/10.12693/APhysPolA.131.869 . .

TY  - CONF
AU  - Lazurova, J.
AU  - Mihalik, M.
AU  - Mihalik, Jr., M.
AU  - Vavra, M.
AU  - Zentkova, M.
AU  - Briancin, J.
AU  - Perović, Marija M.
AU  - Kusigerski, Vladan
AU  - Schneeweiss, Oldřich B.
AU  - Roupcova, P.
AU  - Kamenev, K. V.
AU  - Misek, M.
AU  - Jagličić, Zvonko
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7067
AB  - The effect of particle reduction to nanoscale size and substitution of Mn3+ ions for Fe3+ ions on the crystal structure, lattice dynamics, Mossbauer spectra and magnetic properties in NdFe(1-x)MnxO(3) compounds have been studied. X-ray powder diffraction and Raman spectroscopy revealed that the Jahn-Teller distortion of lattice dominates for samples with x GT 0.4. The average particle size of NdFeO3 nanoparticles (NAP) increases with annealing at 600 degrees C from about 15 nm to 25 nm. The presence of superparamagnetic particles was indicated by Mossbauer measurements in NdFeO3 NAP system. Sextets in NdFe(1-x)MnxO(3) Mssbauer spectra can be modelled with several local environments of Fe3+ induced by substitution. The reduction of dimensionality and the substitution induce a decrease of the Neel temperature T-Nl from 691 K to 544 K for NAP or to 356 K for x = 0.4, however the temperature of spin reorientation T-SR increases with substitution. The saturated magnetization obtained at 1.9 K increases and ferromagnetic component is removed below T-SR with the substitution.
C3  - Journal of Physics: Conference Series
T1  - Magnetic Properties and Mossbauer spectroscopy of NdFe(1-x)MnxO(3)
VL  - 592
DO  - 10.1088/1742-6596/592/1/012117
ER  - 

@conference{
author = "Lazurova, J. and Mihalik, M. and Mihalik, Jr., M. and Vavra, M. and Zentkova, M. and Briancin, J. and Perović, Marija M. and Kusigerski, Vladan and Schneeweiss, Oldřich B. and Roupcova, P. and Kamenev, K. V. and Misek, M. and Jagličić, Zvonko",
year = "2015",
abstract = "The effect of particle reduction to nanoscale size and substitution of Mn3+ ions for Fe3+ ions on the crystal structure, lattice dynamics, Mossbauer spectra and magnetic properties in NdFe(1-x)MnxO(3) compounds have been studied. X-ray powder diffraction and Raman spectroscopy revealed that the Jahn-Teller distortion of lattice dominates for samples with x GT 0.4. The average particle size of NdFeO3 nanoparticles (NAP) increases with annealing at 600 degrees C from about 15 nm to 25 nm. The presence of superparamagnetic particles was indicated by Mossbauer measurements in NdFeO3 NAP system. Sextets in NdFe(1-x)MnxO(3) Mssbauer spectra can be modelled with several local environments of Fe3+ induced by substitution. The reduction of dimensionality and the substitution induce a decrease of the Neel temperature T-Nl from 691 K to 544 K for NAP or to 356 K for x = 0.4, however the temperature of spin reorientation T-SR increases with substitution. The saturated magnetization obtained at 1.9 K increases and ferromagnetic component is removed below T-SR with the substitution.",
journal = "Journal of Physics: Conference Series",
title = "Magnetic Properties and Mossbauer spectroscopy of NdFe(1-x)MnxO(3)",
volume = "592",
doi = "10.1088/1742-6596/592/1/012117"
}

Lazurova, J., Mihalik, M., Mihalik, Jr., M., Vavra, M., Zentkova, M., Briancin, J., Perović, M. M., Kusigerski, V., Schneeweiss, O. B., Roupcova, P., Kamenev, K. V., Misek, M.,& Jagličić, Z.. (2015). Magnetic Properties and Mossbauer spectroscopy of NdFe(1-x)MnxO(3). in Journal of Physics: Conference Series, 592.
https://doi.org/10.1088/1742-6596/592/1/012117

Lazurova J, Mihalik M, Mihalik JM, Vavra M, Zentkova M, Briancin J, Perović MM, Kusigerski V, Schneeweiss OB, Roupcova P, Kamenev KV, Misek M, Jagličić Z. Magnetic Properties and Mossbauer spectroscopy of NdFe(1-x)MnxO(3). in Journal of Physics: Conference Series. 2015;592.
doi:10.1088/1742-6596/592/1/012117 .

Lazurova, J., Mihalik, M., Mihalik, Jr., M., Vavra, M., Zentkova, M., Briancin, J., Perović, Marija M., Kusigerski, Vladan, Schneeweiss, Oldřich B., Roupcova, P., Kamenev, K. V., Misek, M., Jagličić, Zvonko, "Magnetic Properties and Mossbauer spectroscopy of NdFe(1-x)MnxO(3)" in Journal of Physics: Conference Series, 592 (2015),
https://doi.org/10.1088/1742-6596/592/1/012117 . .

TY  - JOUR
AU  - Zentkova, M.
AU  - Lazurova, J.
AU  - Kovač, Janez
AU  - Mihalik, M.
AU  - Mihalik, Jr., M.
AU  - Briancin, J.
AU  - Fitta, M.
AU  - Kusigerski, Vladan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7034
AB  - In our paper we study effect of Mn for Fe substitution on magnetic properties of NdFex-1MnxO3 compounds for x = 0 and 0.1, which have been grown by the OFZ technique. The Neel temperature decreases from T-N1 = 691 K to T-N1 = 621 K, and the anomaly in AC susceptibility, related to spin reorientation, vanishes with Mn substitution. Low temperature heat capacity measurement for sample with x = 0.1 revealed that substitution of Mn for Fe shifts a Schottky-type anomaly at T-sh to higher temperatures. Another anomaly is generated by doping at T-max = 11 K. The anomaly is smeared out by magnetic field, confirming its magnetic origin.
T2  - Acta Physica Polonica A
T1  - Magnetic Properties of NdFe0.9Mn0.1O3
VL  - 126
IS  - 1
SP  - 306
EP  - 307
DO  - 10.12693/APhysPolA.126.306
ER  - 

@article{
author = "Zentkova, M. and Lazurova, J. and Kovač, Janez and Mihalik, M. and Mihalik, Jr., M. and Briancin, J. and Fitta, M. and Kusigerski, Vladan",
year = "2014",
abstract = "In our paper we study effect of Mn for Fe substitution on magnetic properties of NdFex-1MnxO3 compounds for x = 0 and 0.1, which have been grown by the OFZ technique. The Neel temperature decreases from T-N1 = 691 K to T-N1 = 621 K, and the anomaly in AC susceptibility, related to spin reorientation, vanishes with Mn substitution. Low temperature heat capacity measurement for sample with x = 0.1 revealed that substitution of Mn for Fe shifts a Schottky-type anomaly at T-sh to higher temperatures. Another anomaly is generated by doping at T-max = 11 K. The anomaly is smeared out by magnetic field, confirming its magnetic origin.",
journal = "Acta Physica Polonica A",
title = "Magnetic Properties of NdFe0.9Mn0.1O3",
volume = "126",
number = "1",
pages = "306-307",
doi = "10.12693/APhysPolA.126.306"
}

Zentkova, M., Lazurova, J., Kovač, J., Mihalik, M., Mihalik, Jr., M., Briancin, J., Fitta, M.,& Kusigerski, V.. (2014). Magnetic Properties of NdFe0.9Mn0.1O3. in Acta Physica Polonica A, 126(1), 306-307.
https://doi.org/10.12693/APhysPolA.126.306

Zentkova M, Lazurova J, Kovač J, Mihalik M, Mihalik JM, Briancin J, Fitta M, Kusigerski V. Magnetic Properties of NdFe0.9Mn0.1O3. in Acta Physica Polonica A. 2014;126(1):306-307.
doi:10.12693/APhysPolA.126.306 .

Zentkova, M., Lazurova, J., Kovač, Janez, Mihalik, M., Mihalik, Jr., M., Briancin, J., Fitta, M., Kusigerski, Vladan, "Magnetic Properties of NdFe0.9Mn0.1O3" in Acta Physica Polonica A, 126, no. 1 (2014):306-307,
https://doi.org/10.12693/APhysPolA.126.306 . .

TY  - JOUR
AU  - Perović, Marija M.
AU  - Kusigerski, Vladan
AU  - Spasojević, Vojislav
AU  - Mraković, Ana Đ.
AU  - Blanuša, Jovan
AU  - Zentkova, M.
AU  - Mihalik, M.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5395
AB  - In this paper, we present the results of a systematic study of nonequilibrium dynamics in a strongly interacting super spin glass (SSG) nanoparticle La0.7Ca0.3MnO3 system by alternating current (ac) susceptibility measurements. Cole-Cole analysis of the obtained data revealed the simultaneous existence of two separated relaxation processes, which can be assigned to the relaxation of different magnetic entities. Along with the expected relaxation of the collective SSG phase, the existence of individual, nonagglomerated particles, which do not take part in the collective phase and relax independently, was proposed. A full dynamical scaling analysis was performed in order to elucidate the nature of the transition to a low-temperature SSG state in the interacting La0.7Ca0.3MnO3 nanoparticle sample.
T2  - Journal of Physics. D: Applied Physics
T1  - An ac susceptibility study of spin dynamics in a super spin glass nanoparticle La0.7Ca0.3MnO3 system: simultaneous relaxation processes
VL  - 46
IS  - 16
DO  - 10.1088/0022-3727/46/16/165001
ER  - 

@article{
author = "Perović, Marija M. and Kusigerski, Vladan and Spasojević, Vojislav and Mraković, Ana Đ. and Blanuša, Jovan and Zentkova, M. and Mihalik, M.",
year = "2013",
abstract = "In this paper, we present the results of a systematic study of nonequilibrium dynamics in a strongly interacting super spin glass (SSG) nanoparticle La0.7Ca0.3MnO3 system by alternating current (ac) susceptibility measurements. Cole-Cole analysis of the obtained data revealed the simultaneous existence of two separated relaxation processes, which can be assigned to the relaxation of different magnetic entities. Along with the expected relaxation of the collective SSG phase, the existence of individual, nonagglomerated particles, which do not take part in the collective phase and relax independently, was proposed. A full dynamical scaling analysis was performed in order to elucidate the nature of the transition to a low-temperature SSG state in the interacting La0.7Ca0.3MnO3 nanoparticle sample.",
journal = "Journal of Physics. D: Applied Physics",
title = "An ac susceptibility study of spin dynamics in a super spin glass nanoparticle La0.7Ca0.3MnO3 system: simultaneous relaxation processes",
volume = "46",
number = "16",
doi = "10.1088/0022-3727/46/16/165001"
}

Perović, M. M., Kusigerski, V., Spasojević, V., Mraković, A. Đ., Blanuša, J., Zentkova, M.,& Mihalik, M.. (2013). An ac susceptibility study of spin dynamics in a super spin glass nanoparticle La0.7Ca0.3MnO3 system: simultaneous relaxation processes. in Journal of Physics. D: Applied Physics, 46(16).
https://doi.org/10.1088/0022-3727/46/16/165001

Perović MM, Kusigerski V, Spasojević V, Mraković AĐ, Blanuša J, Zentkova M, Mihalik M. An ac susceptibility study of spin dynamics in a super spin glass nanoparticle La0.7Ca0.3MnO3 system: simultaneous relaxation processes. in Journal of Physics. D: Applied Physics. 2013;46(16).
doi:10.1088/0022-3727/46/16/165001 .

Perović, Marija M., Kusigerski, Vladan, Spasojević, Vojislav, Mraković, Ana Đ., Blanuša, Jovan, Zentkova, M., Mihalik, M., "An ac susceptibility study of spin dynamics in a super spin glass nanoparticle La0.7Ca0.3MnO3 system: simultaneous relaxation processes" in Journal of Physics. D: Applied Physics, 46, no. 16 (2013),
https://doi.org/10.1088/0022-3727/46/16/165001 . .

TY  - JOUR
AU  - Kusigerski, Vladan
AU  - Perović, Marija M.
AU  - Mraković, Ana Đ.
AU  - Blanuša, Jovan
AU  - Mihalik, M.
AU  - Zentkova, M.
AU  - Spasojević, Vojislav
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6895
AB  - Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 with the average particle size of 10 nm was mechanochemically synthesized in the single-step procedure Temperature and field dependences of magnetization were recorded under both ambient and applied hydrostatic pressure up to 0 47 GPa At ambient pressure, two magnetic transition points were observed one of the spin-glass like type at the temperature T-f approximate to 34 K, and ferro-to-paramagnet transition at T-C approximate to 51 K Under the applied pressure magnetic parameters gradually changed (i) both T-C and T-f were lowered with the increase in pressure, (ii) both high field magnetization M-5T and remanent magnetization M-Rem decreased with pressure, (iii) coercivity H increased with pressure The obtained results show that magnetism of a nanoparticle system with high degree of Intrinsic disorder diminishes with the applied pressure that is in compliance with the effect of the increased cationic disorder (internal pressure) in bulk manganites
T2  - Acta Physica Polonica A
T1  - Magnetism of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 under Applied Hydrostatic Pressure
VL  - 118
IS  - 5
SP  - 811
EP  - 812
DO  - 10.12693/APhysPolA.118.811
ER  - 

@article{
author = "Kusigerski, Vladan and Perović, Marija M. and Mraković, Ana Đ. and Blanuša, Jovan and Mihalik, M. and Zentkova, M. and Spasojević, Vojislav",
year = "2010",
abstract = "Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 with the average particle size of 10 nm was mechanochemically synthesized in the single-step procedure Temperature and field dependences of magnetization were recorded under both ambient and applied hydrostatic pressure up to 0 47 GPa At ambient pressure, two magnetic transition points were observed one of the spin-glass like type at the temperature T-f approximate to 34 K, and ferro-to-paramagnet transition at T-C approximate to 51 K Under the applied pressure magnetic parameters gradually changed (i) both T-C and T-f were lowered with the increase in pressure, (ii) both high field magnetization M-5T and remanent magnetization M-Rem decreased with pressure, (iii) coercivity H increased with pressure The obtained results show that magnetism of a nanoparticle system with high degree of Intrinsic disorder diminishes with the applied pressure that is in compliance with the effect of the increased cationic disorder (internal pressure) in bulk manganites",
journal = "Acta Physica Polonica A",
title = "Magnetism of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 under Applied Hydrostatic Pressure",
volume = "118",
number = "5",
pages = "811-812",
doi = "10.12693/APhysPolA.118.811"
}

Kusigerski, V., Perović, M. M., Mraković, A. Đ., Blanuša, J., Mihalik, M., Zentkova, M.,& Spasojević, V.. (2010). Magnetism of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 under Applied Hydrostatic Pressure. in Acta Physica Polonica A, 118(5), 811-812.
https://doi.org/10.12693/APhysPolA.118.811

Kusigerski V, Perović MM, Mraković AĐ, Blanuša J, Mihalik M, Zentkova M, Spasojević V. Magnetism of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 under Applied Hydrostatic Pressure. in Acta Physica Polonica A. 2010;118(5):811-812.
doi:10.12693/APhysPolA.118.811 .

Kusigerski, Vladan, Perović, Marija M., Mraković, Ana Đ., Blanuša, Jovan, Mihalik, M., Zentkova, M., Spasojević, Vojislav, "Magnetism of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 under Applied Hydrostatic Pressure" in Acta Physica Polonica A, 118, no. 5 (2010):811-812,
https://doi.org/10.12693/APhysPolA.118.811 . .

TY  - JOUR
AU  - Kusigerski, Vladan
AU  - Marković, D.
AU  - Spasojević, Vojislav
AU  - Tadić, Marin
AU  - Zentkova, M.
AU  - Mihalik, M.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3983
AB  - Pressure effects on magnetic properties of two La0.7Ca0.3MnO3 nanoparticle samples with different mean particle sizes were investigated. Both the samples were prepared by the glycine-nitrate method: sample S-as-prepared (10 nm), and sample S-900-subsequently annealed at 900 A degrees C for 2 h (50 nm). Magnetization measurements revealed remarkable differences in magnetic properties with the applied pressure up to 0.75 GPa: (i) for S sample, both transition temperatures, para-to-ferromagnetic T (C) = 120 K and spin-glass-like transition T (f) = 102 K, decrease with the pressure with the respective pressure coefficients dT (C)/dP = -2.9 K/GPa and dT (f)/dP = -4.4 K/GPa; (ii) for S-900 sample, para-to-ferromagnetic transition temperature T (C) = 261 K increases with pressure with the pressure coefficient dT (C)/dP = 14.8 K/GPa. At the same time, saturation magnetization M (S) recorded at 10 K decreases/increases with pressure for S/S-900 sample, respectively. Explanation of these unusual pressure effects on the magnetism of sample S is proposed within the scenario of the combined contributions of two types of disorders present in the system: surface disorder introduced by the particle shell, and structural disorder of the particle core caused by the prominent Jahn-Teller distortion. Both disorders tend to vanish with the annealing of the system (i.e., with the nanoparticle growth), and so the behavior of the sample S-900 is similar to that previously observed for the bulk counterpart.
T2  - Journal of Nanoparticle Research
T1  - Magnetic properties of nanoparticle La0.7Ca0.3MnO3 under applied hydrostatic pressure
VL  - 12
IS  - 4
SP  - 1299
EP  - 1306
DO  - 10.1007/s11051-010-9852-2
ER  - 

@article{
author = "Kusigerski, Vladan and Marković, D. and Spasojević, Vojislav and Tadić, Marin and Zentkova, M. and Mihalik, M.",
year = "2010",
abstract = "Pressure effects on magnetic properties of two La0.7Ca0.3MnO3 nanoparticle samples with different mean particle sizes were investigated. Both the samples were prepared by the glycine-nitrate method: sample S-as-prepared (10 nm), and sample S-900-subsequently annealed at 900 A degrees C for 2 h (50 nm). Magnetization measurements revealed remarkable differences in magnetic properties with the applied pressure up to 0.75 GPa: (i) for S sample, both transition temperatures, para-to-ferromagnetic T (C) = 120 K and spin-glass-like transition T (f) = 102 K, decrease with the pressure with the respective pressure coefficients dT (C)/dP = -2.9 K/GPa and dT (f)/dP = -4.4 K/GPa; (ii) for S-900 sample, para-to-ferromagnetic transition temperature T (C) = 261 K increases with pressure with the pressure coefficient dT (C)/dP = 14.8 K/GPa. At the same time, saturation magnetization M (S) recorded at 10 K decreases/increases with pressure for S/S-900 sample, respectively. Explanation of these unusual pressure effects on the magnetism of sample S is proposed within the scenario of the combined contributions of two types of disorders present in the system: surface disorder introduced by the particle shell, and structural disorder of the particle core caused by the prominent Jahn-Teller distortion. Both disorders tend to vanish with the annealing of the system (i.e., with the nanoparticle growth), and so the behavior of the sample S-900 is similar to that previously observed for the bulk counterpart.",
journal = "Journal of Nanoparticle Research",
title = "Magnetic properties of nanoparticle La0.7Ca0.3MnO3 under applied hydrostatic pressure",
volume = "12",
number = "4",
pages = "1299-1306",
doi = "10.1007/s11051-010-9852-2"
}

Kusigerski, V., Marković, D., Spasojević, V., Tadić, M., Zentkova, M.,& Mihalik, M.. (2010). Magnetic properties of nanoparticle La0.7Ca0.3MnO3 under applied hydrostatic pressure. in Journal of Nanoparticle Research, 12(4), 1299-1306.
https://doi.org/10.1007/s11051-010-9852-2

Kusigerski V, Marković D, Spasojević V, Tadić M, Zentkova M, Mihalik M. Magnetic properties of nanoparticle La0.7Ca0.3MnO3 under applied hydrostatic pressure. in Journal of Nanoparticle Research. 2010;12(4):1299-1306.
doi:10.1007/s11051-010-9852-2 .

Kusigerski, Vladan, Marković, D., Spasojević, Vojislav, Tadić, Marin, Zentkova, M., Mihalik, M., "Magnetic properties of nanoparticle La0.7Ca0.3MnO3 under applied hydrostatic pressure" in Journal of Nanoparticle Research, 12, no. 4 (2010):1299-1306,
https://doi.org/10.1007/s11051-010-9852-2 . .