Copper-doping effects in electronic structure and spectral properties of SmNi₅
The electronic structure and optical properties of the SmNi₅₋Cux (x = 0, 1, 2) compounds are studied. The band spectra of the studied intermetallics were calculated with LDA+U+SO method supplementing the local density approximation with a correction for strong electron interaction on the shell of...
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| Datum: | 2015 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2015
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| Zitieren: | Copper-doping effects in electronic structure and spectral properties of SmNi₅ / Yu.V. Knyazev, A.V. Lukoyanov, Yu.I. Kuz’min, A.G. Kuchin // Физика низких температур. — 2015. — Т. 41, № 12. — С. 1313–1317. — Бібліогр.: 15 назв. — англ. |
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Knyazev, Yu.V. Lukoyanov, A.V. Kuz’min, Yu.I. Kuchin, A.G. 2018-01-07T17:19:30Z 2018-01-07T17:19:30Z 2015 Copper-doping effects in electronic structure and spectral properties of SmNi₅ / Yu.V. Knyazev, A.V. Lukoyanov, Yu.I. Kuz’min, A.G. Kuchin // Физика низких температур. — 2015. — Т. 41, № 12. — С. 1313–1317. — Бібліогр.: 15 назв. — англ. 0132-6414 PACS: 71.20.–b, 71.20.Eh, 78.30.–j, 78.40.–q https://nasplib.isofts.kiev.ua/handle/123456789/128292 The electronic structure and optical properties of the SmNi₅₋Cux (x = 0, 1, 2) compounds are studied. The band spectra of the studied intermetallics were calculated with LDA+U+SO method supplementing the local density approximation with a correction for strong electron interaction on the shell of the rare-earth element. Optical properties were studied by ellipsometry method in the wide wavelength range. It was found that the substitution of copper for nickel leads to local changes in the optical conductivity spectra. Both the spectroscopic measurements and theoretical calculations demonstrate the presence of a broad absorption band around 4 eV associated with the Cu 3d → Ni 3d electron transitions and increasing with the grown of copper content. The experimental dispersion curves of optical conductivity in the interband absorption region were interpreted using the results of the calculations. The research was carried out within the state assignment of FASO of Russia (theme “Electron” No. 01201463326), supported in part by RFBR (projects 13-02-00256 and 13-02-00050), Program of UrB RAS (project 15-8-2-4) and the Dynasty Foundation. Some results reported in this work were obtained using ”Uran” supercomputer of IMM UrB RAS. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Низкотемпературная оптическая спектроскопия Copper-doping effects in electronic structure and spectral properties of SmNi₅ Article published earlier |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Copper-doping effects in electronic structure and spectral properties of SmNi₅ |
| spellingShingle |
Copper-doping effects in electronic structure and spectral properties of SmNi₅ Knyazev, Yu.V. Lukoyanov, A.V. Kuz’min, Yu.I. Kuchin, A.G. Низкотемпературная оптическая спектроскопия |
| title_short |
Copper-doping effects in electronic structure and spectral properties of SmNi₅ |
| title_full |
Copper-doping effects in electronic structure and spectral properties of SmNi₅ |
| title_fullStr |
Copper-doping effects in electronic structure and spectral properties of SmNi₅ |
| title_full_unstemmed |
Copper-doping effects in electronic structure and spectral properties of SmNi₅ |
| title_sort |
copper-doping effects in electronic structure and spectral properties of smni₅ |
| author |
Knyazev, Yu.V. Lukoyanov, A.V. Kuz’min, Yu.I. Kuchin, A.G. |
| author_facet |
Knyazev, Yu.V. Lukoyanov, A.V. Kuz’min, Yu.I. Kuchin, A.G. |
| topic |
Низкотемпературная оптическая спектроскопия |
| topic_facet |
Низкотемпературная оптическая спектроскопия |
| publishDate |
2015 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
The electronic structure and optical properties of the SmNi₅₋Cux (x = 0, 1, 2) compounds are studied. The
band spectra of the studied intermetallics were calculated with LDA+U+SO method supplementing the local
density approximation with a correction for strong electron interaction on the shell of the rare-earth element. Optical
properties were studied by ellipsometry method in the wide wavelength range. It was found that the substitution
of copper for nickel leads to local changes in the optical conductivity spectra. Both the spectroscopic
measurements and theoretical calculations demonstrate the presence of a broad absorption band around 4 eV associated
with the Cu 3d → Ni 3d electron transitions and increasing with the grown of copper content. The experimental
dispersion curves of optical conductivity in the interband absorption region were interpreted using the
results of the calculations.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/128292 |
| citation_txt |
Copper-doping effects in electronic structure and spectral properties of SmNi₅ / Yu.V. Knyazev, A.V. Lukoyanov, Yu.I. Kuz’min, A.G. Kuchin // Физика низких температур. — 2015. — Т. 41, № 12. — С. 1313–1317. — Бібліогр.: 15 назв. — англ. |
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| first_indexed |
2025-12-07T20:08:46Z |
| last_indexed |
2025-12-07T20:08:46Z |
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