TY  - JOUR
AU  - Caputo, Marco
AU  - Ristić, Zoran
AU  - Dhaka, Rajendra S.
AU  - Das, Tanmoy
AU  - Wang, Zhiming
AU  - Matt, Christan E.
AU  - Plumb, Nicholas C.
AU  - Guedes, Eduardo B.
AU  - Jandke, Jasmin
AU  - Naamneh, Muntaser
AU  - Zakharova, Anna
AU  - Medarde, Marisa
AU  - Shi, Ming
AU  - Patthey, Luc
AU  - Mesot, Joël
AU  - Piamonteze, Cinthia
AU  - Radović, Milan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9909
AB  - Employing X-ray magnetic circular dichroism (XMCD), angle-resolved photoemission spectroscopy (ARPES), and momentum-resolved density fluctuation (MRDF) theory, the magnetic and electronic properties of ultrathin NdNiO3 (NNO) film in proximity to ferromagnetic (FM) La0.67Sr0.33MnO3 (LSMO) layer are investigated. The experimental data shows the direct magnetic coupling between the nickelate film and the manganite layer which causes an unusual ferromagnetic (FM) phase in NNO. Moreover, it is shown the metal–insulator transition in the NNO layer, identified by an abrupt suppression of ARPES spectral weight near the Fermi level (EF), is absent. This observation suggests that the insulating AFM ground state is quenched in proximity to the FM layer. Combining the experimental data (XMCD and AREPS) with the momentum-resolved density fluctuation calculation (MRDF) reveals a direct link between the MIT and the magnetic orders in NNO systems. This work demonstrates that the proximity layer order can be broadly used to modify physical properties and enrich the phase diagram of RENiO3 (RE = rare-earth element).
T2  - Advanced Science
T1  - Proximity-Induced Novel Ferromagnetism Accompanied with Resolute Metallicity in NdNiO3 Heterostructure
VL  - 8
IS  - 19
SP  - 2101516
DO  - 10.1002/advs.202101516
ER  - 

@article{
author = "Caputo, Marco and Ristić, Zoran and Dhaka, Rajendra S. and Das, Tanmoy and Wang, Zhiming and Matt, Christan E. and Plumb, Nicholas C. and Guedes, Eduardo B. and Jandke, Jasmin and Naamneh, Muntaser and Zakharova, Anna and Medarde, Marisa and Shi, Ming and Patthey, Luc and Mesot, Joël and Piamonteze, Cinthia and Radović, Milan",
year = "2021",
abstract = "Employing X-ray magnetic circular dichroism (XMCD), angle-resolved photoemission spectroscopy (ARPES), and momentum-resolved density fluctuation (MRDF) theory, the magnetic and electronic properties of ultrathin NdNiO3 (NNO) film in proximity to ferromagnetic (FM) La0.67Sr0.33MnO3 (LSMO) layer are investigated. The experimental data shows the direct magnetic coupling between the nickelate film and the manganite layer which causes an unusual ferromagnetic (FM) phase in NNO. Moreover, it is shown the metal–insulator transition in the NNO layer, identified by an abrupt suppression of ARPES spectral weight near the Fermi level (EF), is absent. This observation suggests that the insulating AFM ground state is quenched in proximity to the FM layer. Combining the experimental data (XMCD and AREPS) with the momentum-resolved density fluctuation calculation (MRDF) reveals a direct link between the MIT and the magnetic orders in NNO systems. This work demonstrates that the proximity layer order can be broadly used to modify physical properties and enrich the phase diagram of RENiO3 (RE = rare-earth element).",
journal = "Advanced Science",
title = "Proximity-Induced Novel Ferromagnetism Accompanied with Resolute Metallicity in NdNiO3 Heterostructure",
volume = "8",
number = "19",
pages = "2101516",
doi = "10.1002/advs.202101516"
}

Caputo, M., Ristić, Z., Dhaka, R. S., Das, T., Wang, Z., Matt, C. E., Plumb, N. C., Guedes, E. B., Jandke, J., Naamneh, M., Zakharova, A., Medarde, M., Shi, M., Patthey, L., Mesot, J., Piamonteze, C.,& Radović, M.. (2021). Proximity-Induced Novel Ferromagnetism Accompanied with Resolute Metallicity in NdNiO3 Heterostructure. in Advanced Science, 8(19), 2101516.
https://doi.org/10.1002/advs.202101516

Caputo M, Ristić Z, Dhaka RS, Das T, Wang Z, Matt CE, Plumb NC, Guedes EB, Jandke J, Naamneh M, Zakharova A, Medarde M, Shi M, Patthey L, Mesot J, Piamonteze C, Radović M. Proximity-Induced Novel Ferromagnetism Accompanied with Resolute Metallicity in NdNiO3 Heterostructure. in Advanced Science. 2021;8(19):2101516.
doi:10.1002/advs.202101516 .

Caputo, Marco, Ristić, Zoran, Dhaka, Rajendra S., Das, Tanmoy, Wang, Zhiming, Matt, Christan E., Plumb, Nicholas C., Guedes, Eduardo B., Jandke, Jasmin, Naamneh, Muntaser, Zakharova, Anna, Medarde, Marisa, Shi, Ming, Patthey, Luc, Mesot, Joël, Piamonteze, Cinthia, Radović, Milan, "Proximity-Induced Novel Ferromagnetism Accompanied with Resolute Metallicity in NdNiO3 Heterostructure" in Advanced Science, 8, no. 19 (2021):2101516,
https://doi.org/10.1002/advs.202101516 . .

TY  - JOUR
AU  - Di Capua, Roberto
AU  - Verma, Manish
AU  - Radović, Milan
AU  - Plumb, Nicholas C.
AU  - Dil, Jan Hugo
AU  - Ristić, Zoran
AU  - Guedes, Eduardo Bonini
AU  - de Luca, Giovanna
AU  - Preziosi, Daniele
AU  - Wang, Zhiming
AU  - Weber, Andrew P.
AU  - Pentcheva, Rossitza
AU  - Salluzzo, Marco
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10118
AB  - Studies on oxide quasi-two-dimensional electron gas (q2DEG) have been a playground for the discovery of novel and sometimes unexpected phenomena, like the reported magnetism at the surface of SrTiO3 (001) and at the interface between nonmagnetic LaAlO3 and SrTiO3 band insulators. However, magnetism in this system is weak and there is evidence of a nonintrinsic origin. Here, by using in situ high-resolution angle-resolved photoemission, we demonstrate that ferromagnetic EuTiO3, the magnetic counterpart of SrTiO3 in the bulk, hosts a q2DEG at its (001) surface. This is confirmed by density functional theory calculations with Hubbard U terms in the presence of oxygen divacancies in various configurations, all of them leading to a spin-polarized q2DEG related to the ferromagnetic order of Eu-4f magnetic moments. The results suggest EuTiO3(001) as a new material platform for oxide q2DEGs, characterized by broken inversion and time-reversal symmetries.
T2  - Physical Review Research
T1  - Two-dimensional electron gas at the (001) surface of ferromagnetic EuTiO3
VL  - 3
IS  - 4
SP  - L042038
DO  - 10.1103/PhysRevResearch.3.L042038
ER  - 

@article{
author = "Di Capua, Roberto and Verma, Manish and Radović, Milan and Plumb, Nicholas C. and Dil, Jan Hugo and Ristić, Zoran and Guedes, Eduardo Bonini and de Luca, Giovanna and Preziosi, Daniele and Wang, Zhiming and Weber, Andrew P. and Pentcheva, Rossitza and Salluzzo, Marco",
year = "2021",
abstract = "Studies on oxide quasi-two-dimensional electron gas (q2DEG) have been a playground for the discovery of novel and sometimes unexpected phenomena, like the reported magnetism at the surface of SrTiO3 (001) and at the interface between nonmagnetic LaAlO3 and SrTiO3 band insulators. However, magnetism in this system is weak and there is evidence of a nonintrinsic origin. Here, by using in situ high-resolution angle-resolved photoemission, we demonstrate that ferromagnetic EuTiO3, the magnetic counterpart of SrTiO3 in the bulk, hosts a q2DEG at its (001) surface. This is confirmed by density functional theory calculations with Hubbard U terms in the presence of oxygen divacancies in various configurations, all of them leading to a spin-polarized q2DEG related to the ferromagnetic order of Eu-4f magnetic moments. The results suggest EuTiO3(001) as a new material platform for oxide q2DEGs, characterized by broken inversion and time-reversal symmetries.",
journal = "Physical Review Research",
title = "Two-dimensional electron gas at the (001) surface of ferromagnetic EuTiO3",
volume = "3",
number = "4",
pages = "L042038",
doi = "10.1103/PhysRevResearch.3.L042038"
}

Di Capua, R., Verma, M., Radović, M., Plumb, N. C., Dil, J. H., Ristić, Z., Guedes, E. B., de Luca, G., Preziosi, D., Wang, Z., Weber, A. P., Pentcheva, R.,& Salluzzo, M.. (2021). Two-dimensional electron gas at the (001) surface of ferromagnetic EuTiO3. in Physical Review Research, 3(4), L042038.
https://doi.org/10.1103/PhysRevResearch.3.L042038

Di Capua R, Verma M, Radović M, Plumb NC, Dil JH, Ristić Z, Guedes EB, de Luca G, Preziosi D, Wang Z, Weber AP, Pentcheva R, Salluzzo M. Two-dimensional electron gas at the (001) surface of ferromagnetic EuTiO3. in Physical Review Research. 2021;3(4):L042038.
doi:10.1103/PhysRevResearch.3.L042038 .

Di Capua, Roberto, Verma, Manish, Radović, Milan, Plumb, Nicholas C., Dil, Jan Hugo, Ristić, Zoran, Guedes, Eduardo Bonini, de Luca, Giovanna, Preziosi, Daniele, Wang, Zhiming, Weber, Andrew P., Pentcheva, Rossitza, Salluzzo, Marco, "Two-dimensional electron gas at the (001) surface of ferromagnetic EuTiO3" in Physical Review Research, 3, no. 4 (2021):L042038,
https://doi.org/10.1103/PhysRevResearch.3.L042038 . .

TY  - JOUR
AU  - Muff, Stefan
AU  - Pilet, Nicolas
AU  - Fanciulli, Mauro
AU  - Weber, Andrew P.
AU  - Wessler, Christian
AU  - Ristić, Zoran
AU  - Wang, Zhiming
AU  - Plumb, Nicholas C.
AU  - Radović, Milan
AU  - Dil, J. Hugo
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11084
AB  - The electronic structure of in situ grown ferroelectric BaTiO3(001) films is studied by angle-resolved photoemission spectroscopy. A two-dimensional state is found at the film-vacuum interface with an unexpected checkerboardlike Fermi surface. The observed absence of in-plane dispersion of the states is attributed to the influence of the strong electric fields of the ferroelectric bulk of the film. These fields cause Bloch oscillations and Wannier-Stark localization of free charges in real space, resulting in a smearing in reciprocal space. It is shown that this effect extends to thin SrTiO3 overlayers grown on the BaTiO3 film.
PB  - American Physical Society (APS)
T2  - Physical Review B
T1  - Influence of ferroelectric order on the surface electronic structure of BaTiO3 films studied by photoemission spectroscopy
VL  - 98
IS  - 4
SP  - 045132
DO  - 10.1103/PhysRevB.98.045132
ER  - 

@article{
author = "Muff, Stefan and Pilet, Nicolas and Fanciulli, Mauro and Weber, Andrew P. and Wessler, Christian and Ristić, Zoran and Wang, Zhiming and Plumb, Nicholas C. and Radović, Milan and Dil, J. Hugo",
year = "2018",
abstract = "The electronic structure of in situ grown ferroelectric BaTiO3(001) films is studied by angle-resolved photoemission spectroscopy. A two-dimensional state is found at the film-vacuum interface with an unexpected checkerboardlike Fermi surface. The observed absence of in-plane dispersion of the states is attributed to the influence of the strong electric fields of the ferroelectric bulk of the film. These fields cause Bloch oscillations and Wannier-Stark localization of free charges in real space, resulting in a smearing in reciprocal space. It is shown that this effect extends to thin SrTiO3 overlayers grown on the BaTiO3 film.",
publisher = "American Physical Society (APS)",
journal = "Physical Review B",
title = "Influence of ferroelectric order on the surface electronic structure of BaTiO3 films studied by photoemission spectroscopy",
volume = "98",
number = "4",
pages = "045132",
doi = "10.1103/PhysRevB.98.045132"
}

Muff, S., Pilet, N., Fanciulli, M., Weber, A. P., Wessler, C., Ristić, Z., Wang, Z., Plumb, N. C., Radović, M.,& Dil, J. H.. (2018). Influence of ferroelectric order on the surface electronic structure of BaTiO3 films studied by photoemission spectroscopy. in Physical Review B
American Physical Society (APS)., 98(4), 045132.
https://doi.org/10.1103/PhysRevB.98.045132

Muff S, Pilet N, Fanciulli M, Weber AP, Wessler C, Ristić Z, Wang Z, Plumb NC, Radović M, Dil JH. Influence of ferroelectric order on the surface electronic structure of BaTiO3 films studied by photoemission spectroscopy. in Physical Review B. 2018;98(4):045132.
doi:10.1103/PhysRevB.98.045132 .

Muff, Stefan, Pilet, Nicolas, Fanciulli, Mauro, Weber, Andrew P., Wessler, Christian, Ristić, Zoran, Wang, Zhiming, Plumb, Nicholas C., Radović, Milan, Dil, J. Hugo, "Influence of ferroelectric order on the surface electronic structure of BaTiO3 films studied by photoemission spectroscopy" in Physical Review B, 98, no. 4 (2018):045132,
https://doi.org/10.1103/PhysRevB.98.045132 . .

TY  - JOUR
AU  - Esposito, Vincent
AU  - Rettig, Laurenz
AU  - Bothschafter, Elisabeth M.
AU  - Deng, Yunpei
AU  - Dornes, Christian
AU  - Huber, Lucas
AU  - Huber, Tim
AU  - Ingold, Gerhard
AU  - Inubushi, Yuichi
AU  - Katayama, Tetsuo
AU  - Kawaguchi, Tomoya
AU  - Lemke, Henrik
AU  - Ogawa, Kanade
AU  - Owada, Shigeki
AU  - Radović, Milan
AU  - Ramakrishnan, Mahesh
AU  - Ristić, Zoran
AU  - Scagnoli, Valerio
AU  - Tanaka, Yoshikazu
AU  - Togashi, Tadashi
AU  - Tono, Kensuke
AU  - Usov, Ivan
AU  - Windsor, Yoav W.
AU  - Yabashi, Makina
AU  - Johnson, Steven L.
AU  - Beaud, Paul
AU  - Staub, Urs
PY  - 2018
UR  - http://aca.scitation.org/doi/10.1063/1.5063530
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7991
AB  - Material properties can be controlled via strain, pressure, chemical composition, or dimensionality. Nickelates are particularly susceptible due to their strong variations of the electronic and magnetic properties on such external stimuli. Here, we analyze the photoinduced dynamics in a single crystalline NdNiO3 film upon excitation across the electronic gap. Using time-resolved reflectivity and resonant x-ray diffraction, we show that the pump pulse induces an insulator-to-metal transition, accompanied by the melting of the charge order. Finally, we compare our results with similar studies in manganites and show that the same model can be used to describe the dynamics in nickelates, hinting towards a unified description of these photoinduced electronic ordering phase transitions. © 2018 Author(s).
T2  - Structural Dynamics
T1  - Dynamics of the photoinduced insulator-to-metal transition in a nickelate film
VL  - 5
IS  - 6
SP  - 064501
DO  - 10.1063/1.5063530
ER  - 

@article{
author = "Esposito, Vincent and Rettig, Laurenz and Bothschafter, Elisabeth M. and Deng, Yunpei and Dornes, Christian and Huber, Lucas and Huber, Tim and Ingold, Gerhard and Inubushi, Yuichi and Katayama, Tetsuo and Kawaguchi, Tomoya and Lemke, Henrik and Ogawa, Kanade and Owada, Shigeki and Radović, Milan and Ramakrishnan, Mahesh and Ristić, Zoran and Scagnoli, Valerio and Tanaka, Yoshikazu and Togashi, Tadashi and Tono, Kensuke and Usov, Ivan and Windsor, Yoav W. and Yabashi, Makina and Johnson, Steven L. and Beaud, Paul and Staub, Urs",
year = "2018",
abstract = "Material properties can be controlled via strain, pressure, chemical composition, or dimensionality. Nickelates are particularly susceptible due to their strong variations of the electronic and magnetic properties on such external stimuli. Here, we analyze the photoinduced dynamics in a single crystalline NdNiO3 film upon excitation across the electronic gap. Using time-resolved reflectivity and resonant x-ray diffraction, we show that the pump pulse induces an insulator-to-metal transition, accompanied by the melting of the charge order. Finally, we compare our results with similar studies in manganites and show that the same model can be used to describe the dynamics in nickelates, hinting towards a unified description of these photoinduced electronic ordering phase transitions. © 2018 Author(s).",
journal = "Structural Dynamics",
title = "Dynamics of the photoinduced insulator-to-metal transition in a nickelate film",
volume = "5",
number = "6",
pages = "064501",
doi = "10.1063/1.5063530"
}

Esposito, V., Rettig, L., Bothschafter, E. M., Deng, Y., Dornes, C., Huber, L., Huber, T., Ingold, G., Inubushi, Y., Katayama, T., Kawaguchi, T., Lemke, H., Ogawa, K., Owada, S., Radović, M., Ramakrishnan, M., Ristić, Z., Scagnoli, V., Tanaka, Y., Togashi, T., Tono, K., Usov, I., Windsor, Y. W., Yabashi, M., Johnson, S. L., Beaud, P.,& Staub, U.. (2018). Dynamics of the photoinduced insulator-to-metal transition in a nickelate film. in Structural Dynamics, 5(6), 064501.
https://doi.org/10.1063/1.5063530

Esposito V, Rettig L, Bothschafter EM, Deng Y, Dornes C, Huber L, Huber T, Ingold G, Inubushi Y, Katayama T, Kawaguchi T, Lemke H, Ogawa K, Owada S, Radović M, Ramakrishnan M, Ristić Z, Scagnoli V, Tanaka Y, Togashi T, Tono K, Usov I, Windsor YW, Yabashi M, Johnson SL, Beaud P, Staub U. Dynamics of the photoinduced insulator-to-metal transition in a nickelate film. in Structural Dynamics. 2018;5(6):064501.
doi:10.1063/1.5063530 .

Esposito, Vincent, Rettig, Laurenz, Bothschafter, Elisabeth M., Deng, Yunpei, Dornes, Christian, Huber, Lucas, Huber, Tim, Ingold, Gerhard, Inubushi, Yuichi, Katayama, Tetsuo, Kawaguchi, Tomoya, Lemke, Henrik, Ogawa, Kanade, Owada, Shigeki, Radović, Milan, Ramakrishnan, Mahesh, Ristić, Zoran, Scagnoli, Valerio, Tanaka, Yoshikazu, Togashi, Tadashi, Tono, Kensuke, Usov, Ivan, Windsor, Yoav W., Yabashi, Makina, Johnson, Steven L., Beaud, Paul, Staub, Urs, "Dynamics of the photoinduced insulator-to-metal transition in a nickelate film" in Structural Dynamics, 5, no. 6 (2018):064501,
https://doi.org/10.1063/1.5063530 . .

TY  - JOUR
AU  - Muff, Steffan
AU  - Fanciulli, Mauro
AU  - Weber, Andrew P.
AU  - Pilet, Nicolas
AU  - Ristić, Zoran
AU  - Wang, Zhiming
AU  - Plumb, Nicholas C.
AU  - Radović, Milan
AU  - Dil, J. Hugo
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7194
AB  - The two-dimensional electron gas at the surface of titanates gathered attention due to its potential to replace conventional silicon based semiconductors in the future. In this study, we investigated films of the parent perovskite CaTiO3, grown by pulsed laser deposition, by means of angular-resolved photoelectron spectroscopy. The films show a c(4 x 2) surface reconstruction after the growth that is reduced to a p(2 x 2) reconstruction under UV-light. At the CaTiO3 film surface, a two-dimensional electron gas (2DEG) is found with an occupied band width of 400 meV. With our findings CaTiO3 is added to the group of oxides witha 2DEG at their surface. Our study widens the phase space to investigate strontium and barium doped CaTiO3 and the interplay of ferroelectric properties with the 2DEG at oxide surfaces. This could open up new paths to tailor two-dimensional transport properties of these systems towards possible applications. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Observation of a two-dimensional electron gas at CaTiO3 film surfaces
VL  - 432
SP  - 41
EP  - 45
DO  - 10.1016/j.apsusc.2017.05.229
ER  - 

@article{
author = "Muff, Steffan and Fanciulli, Mauro and Weber, Andrew P. and Pilet, Nicolas and Ristić, Zoran and Wang, Zhiming and Plumb, Nicholas C. and Radović, Milan and Dil, J. Hugo",
year = "2018",
abstract = "The two-dimensional electron gas at the surface of titanates gathered attention due to its potential to replace conventional silicon based semiconductors in the future. In this study, we investigated films of the parent perovskite CaTiO3, grown by pulsed laser deposition, by means of angular-resolved photoelectron spectroscopy. The films show a c(4 x 2) surface reconstruction after the growth that is reduced to a p(2 x 2) reconstruction under UV-light. At the CaTiO3 film surface, a two-dimensional electron gas (2DEG) is found with an occupied band width of 400 meV. With our findings CaTiO3 is added to the group of oxides witha 2DEG at their surface. Our study widens the phase space to investigate strontium and barium doped CaTiO3 and the interplay of ferroelectric properties with the 2DEG at oxide surfaces. This could open up new paths to tailor two-dimensional transport properties of these systems towards possible applications. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Observation of a two-dimensional electron gas at CaTiO3 film surfaces",
volume = "432",
pages = "41-45",
doi = "10.1016/j.apsusc.2017.05.229"
}

Muff, S., Fanciulli, M., Weber, A. P., Pilet, N., Ristić, Z., Wang, Z., Plumb, N. C., Radović, M.,& Dil, J. H.. (2018). Observation of a two-dimensional electron gas at CaTiO3 film surfaces. in Applied Surface Science, 432, 41-45.
https://doi.org/10.1016/j.apsusc.2017.05.229

Muff S, Fanciulli M, Weber AP, Pilet N, Ristić Z, Wang Z, Plumb NC, Radović M, Dil JH. Observation of a two-dimensional electron gas at CaTiO3 film surfaces. in Applied Surface Science. 2018;432:41-45.
doi:10.1016/j.apsusc.2017.05.229 .

Muff, Steffan, Fanciulli, Mauro, Weber, Andrew P., Pilet, Nicolas, Ristić, Zoran, Wang, Zhiming, Plumb, Nicholas C., Radović, Milan, Dil, J. Hugo, "Observation of a two-dimensional electron gas at CaTiO3 film surfaces" in Applied Surface Science, 432 (2018):41-45,
https://doi.org/10.1016/j.apsusc.2017.05.229 . .

TY  - JOUR
AU  - Plumb, N. C.
AU  - Gawryluk, D. J.
AU  - Wang, Y.
AU  - Ristić, Zoran
AU  - Park, J.
AU  - Lv, B. Q.
AU  - Wang, Z.
AU  - Matt, C. E.
AU  - Xu, N.
AU  - Shang, T.
AU  - Conder, K.
AU  - Mesot, J.
AU  - Johnston, S.
AU  - Shi, M.
AU  - Radović, Milan
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11085
AB  - We investigate the band structure of BaBiO3, an insulating parent compound of doped high-T-c superconductors, using in situ angle-resolved photoemission spectroscopy on thin films. The data compare favorably overall with density functional theory calculations within the local density approximation, demonstrating that electron correlations are weak. The bands exhibit Brillouin zone folding consistent with known BiO6 breathing distortions. Though the distortions are often thought to coincide with Bi3+/Bi5+ charge ordering, core level spectra show that bismuth is monovalent. We further demonstrate that the bands closest to the Fermi level are primarily oxygen derived, while the bismuth 6s states mostly contribute to dispersive bands at deeper binding energy. The results support a model of Bi-O charge transfer in which hole pairs are localized on combinations of the O 2p orbitals.
T2  - Physical Review Letters
T1  - Momentum-Resolved Electronic Structure of the High-Tc Superconductor Parent Compound BaBiO3
VL  - 117
IS  - 3
SP  - 037002
DO  - 10.1103/PhysRevLett.117.037002
ER  - 

@article{
author = "Plumb, N. C. and Gawryluk, D. J. and Wang, Y. and Ristić, Zoran and Park, J. and Lv, B. Q. and Wang, Z. and Matt, C. E. and Xu, N. and Shang, T. and Conder, K. and Mesot, J. and Johnston, S. and Shi, M. and Radović, Milan",
year = "2016",
abstract = "We investigate the band structure of BaBiO3, an insulating parent compound of doped high-T-c superconductors, using in situ angle-resolved photoemission spectroscopy on thin films. The data compare favorably overall with density functional theory calculations within the local density approximation, demonstrating that electron correlations are weak. The bands exhibit Brillouin zone folding consistent with known BiO6 breathing distortions. Though the distortions are often thought to coincide with Bi3+/Bi5+ charge ordering, core level spectra show that bismuth is monovalent. We further demonstrate that the bands closest to the Fermi level are primarily oxygen derived, while the bismuth 6s states mostly contribute to dispersive bands at deeper binding energy. The results support a model of Bi-O charge transfer in which hole pairs are localized on combinations of the O 2p orbitals.",
journal = "Physical Review Letters",
title = "Momentum-Resolved Electronic Structure of the High-Tc Superconductor Parent Compound BaBiO3",
volume = "117",
number = "3",
pages = "037002",
doi = "10.1103/PhysRevLett.117.037002"
}

Plumb, N. C., Gawryluk, D. J., Wang, Y., Ristić, Z., Park, J., Lv, B. Q., Wang, Z., Matt, C. E., Xu, N., Shang, T., Conder, K., Mesot, J., Johnston, S., Shi, M.,& Radović, M.. (2016). Momentum-Resolved Electronic Structure of the High-Tc Superconductor Parent Compound BaBiO3. in Physical Review Letters, 117(3), 037002.
https://doi.org/10.1103/PhysRevLett.117.037002

Plumb N, Gawryluk D, Wang Y, Ristić Z, Park J, Lv B, Wang Z, Matt C, Xu N, Shang T, Conder K, Mesot J, Johnston S, Shi M, Radović M. Momentum-Resolved Electronic Structure of the High-Tc Superconductor Parent Compound BaBiO3. in Physical Review Letters. 2016;117(3):037002.
doi:10.1103/PhysRevLett.117.037002 .

Plumb, N. C., Gawryluk, D. J., Wang, Y., Ristić, Zoran, Park, J., Lv, B. Q., Wang, Z., Matt, C. E., Xu, N., Shang, T., Conder, K., Mesot, J., Johnston, S., Shi, M., Radović, Milan, "Momentum-Resolved Electronic Structure of the High-Tc Superconductor Parent Compound BaBiO3" in Physical Review Letters, 117, no. 3 (2016):037002,
https://doi.org/10.1103/PhysRevLett.117.037002 . .

TY  - JOUR
AU  - Dhaka, R. S.
AU  - Das, Tanmoy
AU  - Plumb, N. C.
AU  - Ristić, Zoran
AU  - Kong, W.
AU  - Matt, C. E.
AU  - Xu, N.
AU  - Dolui, Kapildeb
AU  - Razzoli, E.
AU  - Medarde, M.
AU  - Patthey, L.
AU  - Shi, M.
AU  - Radović, Milan
AU  - Mesot, Joël
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11086
AB  - We employed in situ pulsed laser deposition (PLD) and angle-resolved photoemission spectroscopy (ARPES) to investigate the mechanism of the metal-insulator transition (MIT) in NdNiO3 (NNO) thin films, grown on NdGaO3(110) and LaAlO3(100) substrates. In the metallic phase, we observe three-dimensional hole and electron Fermi surface (FS) pockets formed from strongly renormalized bands with well-defined quasiparticles. Upon cooling across the MIT in NNO/NGO sample, the quasiparticles lose coherence via a spectral weight transfer from near the Fermi level to localized states forming at higher binding energies. In the case of NNO/LAO, the bands are apparently shifted upward with an additional holelike pocket forming at the corner of the Brillouin zone. We find that the renormalization effects are strongly anisotropic and are stronger in NNO/NGO than NNO/LAO. Our study reveals that substrate-induced strain tunes the crystal field splitting, which changes the FS properties, nesting conditions, and spin-fluctuation strength, and thereby controls the MIT via the formation of an electronic order parameter with QAF∼(1/4,1/4,1/4±δ).
T2  - Physical Review B
T1  - Tuning the metal-insulator transition in NdNiO3 heterostructures via Fermi surface instability and spin fluctuations
VL  - 92
IS  - 3
SP  - 035127
DO  - 10.1103/PhysRevB.92.035127
ER  - 

@article{
author = "Dhaka, R. S. and Das, Tanmoy and Plumb, N. C. and Ristić, Zoran and Kong, W. and Matt, C. E. and Xu, N. and Dolui, Kapildeb and Razzoli, E. and Medarde, M. and Patthey, L. and Shi, M. and Radović, Milan and Mesot, Joël",
year = "2015",
abstract = "We employed in situ pulsed laser deposition (PLD) and angle-resolved photoemission spectroscopy (ARPES) to investigate the mechanism of the metal-insulator transition (MIT) in NdNiO3 (NNO) thin films, grown on NdGaO3(110) and LaAlO3(100) substrates. In the metallic phase, we observe three-dimensional hole and electron Fermi surface (FS) pockets formed from strongly renormalized bands with well-defined quasiparticles. Upon cooling across the MIT in NNO/NGO sample, the quasiparticles lose coherence via a spectral weight transfer from near the Fermi level to localized states forming at higher binding energies. In the case of NNO/LAO, the bands are apparently shifted upward with an additional holelike pocket forming at the corner of the Brillouin zone. We find that the renormalization effects are strongly anisotropic and are stronger in NNO/NGO than NNO/LAO. Our study reveals that substrate-induced strain tunes the crystal field splitting, which changes the FS properties, nesting conditions, and spin-fluctuation strength, and thereby controls the MIT via the formation of an electronic order parameter with QAF∼(1/4,1/4,1/4±δ).",
journal = "Physical Review B",
title = "Tuning the metal-insulator transition in NdNiO3 heterostructures via Fermi surface instability and spin fluctuations",
volume = "92",
number = "3",
pages = "035127",
doi = "10.1103/PhysRevB.92.035127"
}

Dhaka, R. S., Das, T., Plumb, N. C., Ristić, Z., Kong, W., Matt, C. E., Xu, N., Dolui, K., Razzoli, E., Medarde, M., Patthey, L., Shi, M., Radović, M.,& Mesot, J.. (2015). Tuning the metal-insulator transition in NdNiO3 heterostructures via Fermi surface instability and spin fluctuations. in Physical Review B, 92(3), 035127.
https://doi.org/10.1103/PhysRevB.92.035127

Dhaka RS, Das T, Plumb NC, Ristić Z, Kong W, Matt CE, Xu N, Dolui K, Razzoli E, Medarde M, Patthey L, Shi M, Radović M, Mesot J. Tuning the metal-insulator transition in NdNiO3 heterostructures via Fermi surface instability and spin fluctuations. in Physical Review B. 2015;92(3):035127.
doi:10.1103/PhysRevB.92.035127 .

Dhaka, R. S., Das, Tanmoy, Plumb, N. C., Ristić, Zoran, Kong, W., Matt, C. E., Xu, N., Dolui, Kapildeb, Razzoli, E., Medarde, M., Patthey, L., Shi, M., Radović, Milan, Mesot, Joël, "Tuning the metal-insulator transition in NdNiO3 heterostructures via Fermi surface instability and spin fluctuations" in Physical Review B, 92, no. 3 (2015):035127,
https://doi.org/10.1103/PhysRevB.92.035127 . .

TY  - JOUR
AU  - Petrović, Suzana
AU  - Adnađević, Borivoj
AU  - Peruško, Davor
AU  - Popovic, Nada
AU  - Bundaleski, Nenad
AU  - Radović, Milan
AU  - Gaković, Biljana M.
AU  - Rakočević, Zlatko Lj.
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3123
AB  - Thin films were deposited by d.c. sputtering onto a Silicon Substrate. The influence of the W-Ti thin film thickness to its structural and morphological characteristics of a nano-scale were studied. The phase composition and grain size were studied by X-ray diffraction (XRD), while the surface morphology and surface roughness were determined by scanning tunneling microscopy (STM). The analysis of the phase composition show that the thin films had a polycrystalline structure they were composed of a b.c.c. W phase with the presence of a h.c.p. Ti phase. The XRD peak in the scattering angle interval of 38 degrees-43 degrees was interpreted as an overlap of peaks corresponding to the W(110) and Ti(101) planes. The grain size and the mean surface roughness both increase with the thikness of the thin film. The chemical composition of the thin film surface was also analysed by low energy ions scattering (LEIS). The results show the surface segregation of titanium, as well as a substantial presence of oxygen an the surface.
T2  - Journal of the Serbian Chemical Society
T1  - Structure and morphology of nano-sized W-Ti/Si thin films
VL  - 71
IS  - 8-9
SP  - 969
EP  - 976
DO  - 10.2298/JSC0609969P
ER  - 

@article{
author = "Petrović, Suzana and Adnađević, Borivoj and Peruško, Davor and Popovic, Nada and Bundaleski, Nenad and Radović, Milan and Gaković, Biljana M. and Rakočević, Zlatko Lj.",
year = "2006",
abstract = "Thin films were deposited by d.c. sputtering onto a Silicon Substrate. The influence of the W-Ti thin film thickness to its structural and morphological characteristics of a nano-scale were studied. The phase composition and grain size were studied by X-ray diffraction (XRD), while the surface morphology and surface roughness were determined by scanning tunneling microscopy (STM). The analysis of the phase composition show that the thin films had a polycrystalline structure they were composed of a b.c.c. W phase with the presence of a h.c.p. Ti phase. The XRD peak in the scattering angle interval of 38 degrees-43 degrees was interpreted as an overlap of peaks corresponding to the W(110) and Ti(101) planes. The grain size and the mean surface roughness both increase with the thikness of the thin film. The chemical composition of the thin film surface was also analysed by low energy ions scattering (LEIS). The results show the surface segregation of titanium, as well as a substantial presence of oxygen an the surface.",
journal = "Journal of the Serbian Chemical Society",
title = "Structure and morphology of nano-sized W-Ti/Si thin films",
volume = "71",
number = "8-9",
pages = "969-976",
doi = "10.2298/JSC0609969P"
}

Petrović, S., Adnađević, B., Peruško, D., Popovic, N., Bundaleski, N., Radović, M., Gaković, B. M.,& Rakočević, Z. Lj.. (2006). Structure and morphology of nano-sized W-Ti/Si thin films. in Journal of the Serbian Chemical Society, 71(8-9), 969-976.
https://doi.org/10.2298/JSC0609969P

Petrović S, Adnađević B, Peruško D, Popovic N, Bundaleski N, Radović M, Gaković BM, Rakočević ZL. Structure and morphology of nano-sized W-Ti/Si thin films. in Journal of the Serbian Chemical Society. 2006;71(8-9):969-976.
doi:10.2298/JSC0609969P .

Petrović, Suzana, Adnađević, Borivoj, Peruško, Davor, Popovic, Nada, Bundaleski, Nenad, Radović, Milan, Gaković, Biljana M., Rakočević, Zlatko Lj., "Structure and morphology of nano-sized W-Ti/Si thin films" in Journal of the Serbian Chemical Society, 71, no. 8-9 (2006):969-976,
https://doi.org/10.2298/JSC0609969P . .

TY  - JOUR
AU  - Bundaleski, Nenad
AU  - Ristić, Zoran
AU  - Radović, Milan
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3022
AB  - Quantitative surface composition analysis using low energy ion scattering (LEIS) can be obstructed by the deviations introduced by the primary beam profile and the analyzer optics. A novel procedure is presented for excluding these deviations in LEIS measurements. The LEIS spectra were calculated from the assumed energy distribution, primary beam profile and the analyzer optics. From the calculated energy spectra, the instrumental functions were determined as a deconvolution of the energy spectra and corresponding energy distributions. The obtained instrumental functions can be very well approximated by the Gaussian. It is convincingly shown that the energy distribution evaluation, by means of the deconvolution of the energy spectrum and the calculated instrumental function, significantly suppresses the problems of qualitative (the peak shift) and the quantitative (the peak intensity deviation) surface composition analysis due to the different geometric profiles of the primary ion beam. The calculation method was then successfully applied for the analysis or the real experimental data that are not too noisy. (c) 2006 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - A novel procedure for elimination of the peak deviations in LEIS spectra influenced by the primary ion beam profile
VL  - 246
IS  - 2
SP  - 463
EP  - 470
DO  - 10.1016/j.nimb.2006.01.015
ER  - 

@article{
author = "Bundaleski, Nenad and Ristić, Zoran and Radović, Milan",
year = "2006",
abstract = "Quantitative surface composition analysis using low energy ion scattering (LEIS) can be obstructed by the deviations introduced by the primary beam profile and the analyzer optics. A novel procedure is presented for excluding these deviations in LEIS measurements. The LEIS spectra were calculated from the assumed energy distribution, primary beam profile and the analyzer optics. From the calculated energy spectra, the instrumental functions were determined as a deconvolution of the energy spectra and corresponding energy distributions. The obtained instrumental functions can be very well approximated by the Gaussian. It is convincingly shown that the energy distribution evaluation, by means of the deconvolution of the energy spectrum and the calculated instrumental function, significantly suppresses the problems of qualitative (the peak shift) and the quantitative (the peak intensity deviation) surface composition analysis due to the different geometric profiles of the primary ion beam. The calculation method was then successfully applied for the analysis or the real experimental data that are not too noisy. (c) 2006 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "A novel procedure for elimination of the peak deviations in LEIS spectra influenced by the primary ion beam profile",
volume = "246",
number = "2",
pages = "463-470",
doi = "10.1016/j.nimb.2006.01.015"
}

Bundaleski, N., Ristić, Z.,& Radović, M.. (2006). A novel procedure for elimination of the peak deviations in LEIS spectra influenced by the primary ion beam profile. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 246(2), 463-470.
https://doi.org/10.1016/j.nimb.2006.01.015

Bundaleski N, Ristić Z, Radović M. A novel procedure for elimination of the peak deviations in LEIS spectra influenced by the primary ion beam profile. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2006;246(2):463-470.
doi:10.1016/j.nimb.2006.01.015 .

Bundaleski, Nenad, Ristić, Zoran, Radović, Milan, "A novel procedure for elimination of the peak deviations in LEIS spectra influenced by the primary ion beam profile" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 246, no. 2 (2006):463-470,
https://doi.org/10.1016/j.nimb.2006.01.015 . .

TY  - JOUR
AU  - Trifunovic, D
AU  - Radović, Milan
AU  - Ristić, Zoran
AU  - Gužvić, Miodrag
AU  - Dimitrijević, Bogomir B.
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2950
AB  - We present a mathematical algorithm for the analysis of electrophoretic patterns resulting from arbitrarily primed PCR profiling. The algorithm is based on the established mathematical procedures applied to the analysis of digital images of gel patterns. The algorithm includes (a) transformation of the image into a matrix form, (b) identification of every electrophoretic lane as a set of matrix columns that are further mathematically processed, (c) averaging of matrix columns corresponding to electrophoretic lanes that define lane representatives, (d) elimination of smiling bands, (e) solving the problem of a lane offset, and (f) removal of the background. Representation of individual electrophoretic lanes in the form of functions allows interlane comparisons and further mathematical analysis. Direct comparison of selected lanes was obtained by employing correlation analysis. Gel images were those obtained after arbitrarily primed PCIR analysis of DNA that underwent damage induced by gamma radiation from a Co-60 source. The applied method proved to be useful for elimination of subjectivity of visual inspection. It offers the possibility to avoid overlooking important differences in case of suboptimal electrophoretic resolution. In addition, higher precision is achieved in the assessment of quantitative differences due to better insight into experimental artifacts. These simple mathematical methods offer an open-type algorithm, i.e., this algorithm enables easy implementation of different parameters that may be useful for other analytical needs.
T2  - Electrophoresis
T1  - Analysis of electrophoretic patterns of arbitrarily primed PCR profiling
VL  - 26
IS  - 22
SP  - 4277
EP  - 4286
DO  - 10.1002/elps.200500381
ER  - 

@article{
author = "Trifunovic, D and Radović, Milan and Ristić, Zoran and Gužvić, Miodrag and Dimitrijević, Bogomir B.",
year = "2005",
abstract = "We present a mathematical algorithm for the analysis of electrophoretic patterns resulting from arbitrarily primed PCR profiling. The algorithm is based on the established mathematical procedures applied to the analysis of digital images of gel patterns. The algorithm includes (a) transformation of the image into a matrix form, (b) identification of every electrophoretic lane as a set of matrix columns that are further mathematically processed, (c) averaging of matrix columns corresponding to electrophoretic lanes that define lane representatives, (d) elimination of smiling bands, (e) solving the problem of a lane offset, and (f) removal of the background. Representation of individual electrophoretic lanes in the form of functions allows interlane comparisons and further mathematical analysis. Direct comparison of selected lanes was obtained by employing correlation analysis. Gel images were those obtained after arbitrarily primed PCIR analysis of DNA that underwent damage induced by gamma radiation from a Co-60 source. The applied method proved to be useful for elimination of subjectivity of visual inspection. It offers the possibility to avoid overlooking important differences in case of suboptimal electrophoretic resolution. In addition, higher precision is achieved in the assessment of quantitative differences due to better insight into experimental artifacts. These simple mathematical methods offer an open-type algorithm, i.e., this algorithm enables easy implementation of different parameters that may be useful for other analytical needs.",
journal = "Electrophoresis",
title = "Analysis of electrophoretic patterns of arbitrarily primed PCR profiling",
volume = "26",
number = "22",
pages = "4277-4286",
doi = "10.1002/elps.200500381"
}

Trifunovic, D., Radović, M., Ristić, Z., Gužvić, M.,& Dimitrijević, B. B.. (2005). Analysis of electrophoretic patterns of arbitrarily primed PCR profiling. in Electrophoresis, 26(22), 4277-4286.
https://doi.org/10.1002/elps.200500381

Trifunovic D, Radović M, Ristić Z, Gužvić M, Dimitrijević BB. Analysis of electrophoretic patterns of arbitrarily primed PCR profiling. in Electrophoresis. 2005;26(22):4277-4286.
doi:10.1002/elps.200500381 .

Trifunovic, D, Radović, Milan, Ristić, Zoran, Gužvić, Miodrag, Dimitrijević, Bogomir B., "Analysis of electrophoretic patterns of arbitrarily primed PCR profiling" in Electrophoresis, 26, no. 22 (2005):4277-4286,
https://doi.org/10.1002/elps.200500381 . .

TY  - JOUR
AU  - Bundaleski, Nenad
AU  - Ristić, Zoran
AU  - Radović, Milan
AU  - Rakočević, Zlatko Lj.
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2926
AB  - The quantitative surface composition analysis with low energy ion scattering (LEIS), which is the experimental technique with the information depth that can be restricted to the first atomic layer, is often obstructed by the experimental problems. A novel approach is presented in order to calculate the influence of the optics of the energy analyzer and the geometric primary ion beam profile to the position, the width and the intensity of peaks in LEIS spectra. The developed method is applied for the analysis of our LEIS experimental system. The obtained results are compared to simple analytical models. The results obtained for our experimental device show that the deviations are not significant, indicating that the experimental system is convenient for performing refined surface composition analysis. (c) 2005 Published by Elsevier B.V.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - Influence of the primary ion beam profile and the energy analyzer optics to the LEIS spectra: the analytical study
VL  - 237
IS  - 3-4
SP  - 613
EP  - 622
DO  - 10.1016/j.nimb.2005.03.009
ER  - 

@article{
author = "Bundaleski, Nenad and Ristić, Zoran and Radović, Milan and Rakočević, Zlatko Lj.",
year = "2005",
abstract = "The quantitative surface composition analysis with low energy ion scattering (LEIS), which is the experimental technique with the information depth that can be restricted to the first atomic layer, is often obstructed by the experimental problems. A novel approach is presented in order to calculate the influence of the optics of the energy analyzer and the geometric primary ion beam profile to the position, the width and the intensity of peaks in LEIS spectra. The developed method is applied for the analysis of our LEIS experimental system. The obtained results are compared to simple analytical models. The results obtained for our experimental device show that the deviations are not significant, indicating that the experimental system is convenient for performing refined surface composition analysis. (c) 2005 Published by Elsevier B.V.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "Influence of the primary ion beam profile and the energy analyzer optics to the LEIS spectra: the analytical study",
volume = "237",
number = "3-4",
pages = "613-622",
doi = "10.1016/j.nimb.2005.03.009"
}

Bundaleski, N., Ristić, Z., Radović, M.,& Rakočević, Z. Lj.. (2005). Influence of the primary ion beam profile and the energy analyzer optics to the LEIS spectra: the analytical study. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 237(3-4), 613-622.
https://doi.org/10.1016/j.nimb.2005.03.009

Bundaleski N, Ristić Z, Radović M, Rakočević ZL. Influence of the primary ion beam profile and the energy analyzer optics to the LEIS spectra: the analytical study. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2005;237(3-4):613-622.
doi:10.1016/j.nimb.2005.03.009 .

Bundaleski, Nenad, Ristić, Zoran, Radović, Milan, Rakočević, Zlatko Lj., "Influence of the primary ion beam profile and the energy analyzer optics to the LEIS spectra: the analytical study" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 237, no. 3-4 (2005):613-622,
https://doi.org/10.1016/j.nimb.2005.03.009 . .

TY  - CONF
AU  - Bundaleski, Nenad
AU  - Radović, Milan
AU  - Rakočević, Zlatko Lj.
AU  - Terzić, Ivan
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6489
AB  - The broad maximum in the energy spectra of Ar+ ions scattered from the clean metal surfaces to the scattering angles smaller than 90degrees is studied. Besides the Ar+ ions, other ion species (He+, N+ and Ne+) are also used as projectiles. The targets in the experiments were polycrystalline silver and copper as well as the monocrystalline nickel (110). According to the analysis of the obtained energy spectra, the maximum is interpreted as the consequence of the symmetric binary collisions between the Ar+ projectiles and the former implanted Ar atoms placed under the outermost atomic layer. This type of experiments gives a unique opportunity to study the process of low energy Ar+ ions implantation in real time, and it could be extended to other projectile-target systems of the greater technological interest.
C3  - AIP Conference Proceedings
T1  - The interpretation of the broad maximum in the energy spectra of Ar+ ions scattered from the clean metal surfaces
VL  - 740
SP  - 197
EP  - 208
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6489
ER  - 

@conference{
author = "Bundaleski, Nenad and Radović, Milan and Rakočević, Zlatko Lj. and Terzić, Ivan",
year = "2004",
abstract = "The broad maximum in the energy spectra of Ar+ ions scattered from the clean metal surfaces to the scattering angles smaller than 90degrees is studied. Besides the Ar+ ions, other ion species (He+, N+ and Ne+) are also used as projectiles. The targets in the experiments were polycrystalline silver and copper as well as the monocrystalline nickel (110). According to the analysis of the obtained energy spectra, the maximum is interpreted as the consequence of the symmetric binary collisions between the Ar+ projectiles and the former implanted Ar atoms placed under the outermost atomic layer. This type of experiments gives a unique opportunity to study the process of low energy Ar+ ions implantation in real time, and it could be extended to other projectile-target systems of the greater technological interest.",
journal = "AIP Conference Proceedings",
title = "The interpretation of the broad maximum in the energy spectra of Ar+ ions scattered from the clean metal surfaces",
volume = "740",
pages = "197-208",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6489"
}

Bundaleski, N., Radović, M., Rakočević, Z. Lj.,& Terzić, I.. (2004). The interpretation of the broad maximum in the energy spectra of Ar+ ions scattered from the clean metal surfaces. in AIP Conference Proceedings, 740, 197-208.
https://hdl.handle.net/21.15107/rcub_vinar_6489

Bundaleski N, Radović M, Rakočević ZL, Terzić I. The interpretation of the broad maximum in the energy spectra of Ar+ ions scattered from the clean metal surfaces. in AIP Conference Proceedings. 2004;740:197-208.
https://hdl.handle.net/21.15107/rcub_vinar_6489 .

Bundaleski, Nenad, Radović, Milan, Rakočević, Zlatko Lj., Terzić, Ivan, "The interpretation of the broad maximum in the energy spectra of Ar+ ions scattered from the clean metal surfaces" in AIP Conference Proceedings, 740 (2004):197-208,
https://hdl.handle.net/21.15107/rcub_vinar_6489 .

TY  - JOUR
AU  - Bundaleski, Nenad
AU  - Radović, Milan
AU  - Rakočević, Zlatko Lj.
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6358
AB  - The importance of low energy ion scattering (LEIS) as a technique for surface characterization is in its low information depth. Serious problems concerning the quantitative analysis of the surface composition by means of LEIS are mainly associated with the neutralization phenomena during the interaction of low energy ions with surface atoms. It is known that intensities of quasi-single (QS) peaks in LEIS spectra depend on the experimental setup such as a detection system or an acceptance region of an energy analyzer. If the acceptance region of the analyzer is smaller than the spot size of the primary ion beam, QS peak intensities will depend on the primary ion beam profile. Therefore, a significant error can be made in quantitative characterization by means of relative sensitivity factors. In this paper, we study the influence of the beam profile on QS peak intensities obtained in LEIS experiments with a polycrystalline copper target. For this purpose, our LEIS experiment is modified in order to provide fast and simple determination of the primary ion beam profile during the measurement of the energy distributions of scattered ions. On the other hand, the acceptance region of the 127degrees cylindrical energy analyzer used in these experiments is calculated according to results of numerical simulations. The correlation between the experimental results and the calculated magnitudes of the acceptance region will be discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.
T2  - Vacuum
T1  - Influence of primary beam profile on LEIS spectra
VL  - 69
IS  - 1-3
SP  - 295
EP  - 300
DO  - 10.1016/S0042-207X(02)00348-2
ER  - 

@article{
author = "Bundaleski, Nenad and Radović, Milan and Rakočević, Zlatko Lj.",
year = "2002",
abstract = "The importance of low energy ion scattering (LEIS) as a technique for surface characterization is in its low information depth. Serious problems concerning the quantitative analysis of the surface composition by means of LEIS are mainly associated with the neutralization phenomena during the interaction of low energy ions with surface atoms. It is known that intensities of quasi-single (QS) peaks in LEIS spectra depend on the experimental setup such as a detection system or an acceptance region of an energy analyzer. If the acceptance region of the analyzer is smaller than the spot size of the primary ion beam, QS peak intensities will depend on the primary ion beam profile. Therefore, a significant error can be made in quantitative characterization by means of relative sensitivity factors. In this paper, we study the influence of the beam profile on QS peak intensities obtained in LEIS experiments with a polycrystalline copper target. For this purpose, our LEIS experiment is modified in order to provide fast and simple determination of the primary ion beam profile during the measurement of the energy distributions of scattered ions. On the other hand, the acceptance region of the 127degrees cylindrical energy analyzer used in these experiments is calculated according to results of numerical simulations. The correlation between the experimental results and the calculated magnitudes of the acceptance region will be discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.",
journal = "Vacuum",
title = "Influence of primary beam profile on LEIS spectra",
volume = "69",
number = "1-3",
pages = "295-300",
doi = "10.1016/S0042-207X(02)00348-2"
}

Bundaleski, N., Radović, M.,& Rakočević, Z. Lj.. (2002). Influence of primary beam profile on LEIS spectra. in Vacuum, 69(1-3), 295-300.
https://doi.org/10.1016/S0042-207X(02)00348-2

Bundaleski N, Radović M, Rakočević ZL. Influence of primary beam profile on LEIS spectra. in Vacuum. 2002;69(1-3):295-300.
doi:10.1016/S0042-207X(02)00348-2 .

Bundaleski, Nenad, Radović, Milan, Rakočević, Zlatko Lj., "Influence of primary beam profile on LEIS spectra" in Vacuum, 69, no. 1-3 (2002):295-300,
https://doi.org/10.1016/S0042-207X(02)00348-2 . .