Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102311
Title: Copper-doping effects in electronic structure and spectral properties of SmNi5
Authors: Knyazev, Y. V.
Lukoyanov, A. V.
Kuz'min, Y. I.
Kuchin, A. G.
Issue Date: 2015
Publisher: American Institute of Physics Inc.
Citation: Copper-doping effects in electronic structure and spectral properties of SmNi5 / Y. V. Knyazev, A. V. Lukoyanov, Y. I. Kuz'min, et al. — DOI 10.1063/1.4935696 // Low Temperature Physics. — 2015. — Vol. 41. — Iss. 12. — P. 1024-1028.
Abstract: The electronic structure and optical properties of the SmNi5-xCux (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. © 2015 AIP Publishing LLC.
Keywords: ABSORPTION SPECTROSCOPY
COPPER
COPPER ALLOYS
ELECTRON TRANSITIONS
ELECTRONIC STRUCTURE
OPTICAL CONDUCTIVITY
RARE EARTHS
SAMARIUM ALLOYS
TERNARY ALLOYS
BROAD ABSORPTIONS
ELECTRON INTERACTION
ELECTRONIC STRUCTURE AND OPTICAL PROPERTIES
INTERBAND ABSORPTION
OPTICAL CONDUCTIVITY SPECTRA
SPECTRAL PROPERTIES
SPECTROSCOPIC MEASUREMENTS
THEORETICAL CALCULATIONS
LOCAL DENSITY APPROXIMATION
URI: http://hdl.handle.net/10995/102311
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 84954215319
PURE ID: 652651
bd80fb76-ebf0-413c-9e4d-5b7d6de3587d
ISSN: 1063777X
DOI: 10.1063/1.4935696
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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