Copper-doping effects in electronic structure and spectral properties of SmNi₅
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Copper-doping effects in electronic structure and spectral properties of SmNi₅
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| Creator |
Knyazev, Yu.V.
Lukoyanov, A.V. Kuz’min, Yu.I. Kuchin, A.G. |
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| Subject |
Низкотемпературная оптическая спектроскопия
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| 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. |
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| Date |
2018-01-07T17:19:30Z
2018-01-07T17:19:30Z 2015 |
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| Type |
Article
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| Identifier |
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 http://dspace.nbuv.gov.ua/handle/123456789/128292 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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