Open AccessЭлектронные и спектральные свойства интерметаллических соединений RRhSn (R=Gd, Tb)
Author(s) -
Ю.В. Князев,
А.В. Лукоянов,
Ю.И. Кузьмин,
Surbhi Gupta,
K. A. Suresh
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.02.45371.218
Subject(s) - electronic structure , polarization (electrochemistry) , ellipsometry , wavelength , condensed matter physics , electron , materials science , density of states , atomic physics , molecular physics , chemistry , physics , optoelectronics , nanotechnology , thin film , quantum mechanics
The investigations of electronic structure and optical properties of GdRhSn and TbRhSn were carried out. The calculations of band spectrum, taking into account the spin polarization, were performed in a local electron density approximation with a correction for strong correlation effects in 4f shell of rare earth metal (LSDA + U method). The optical studies were done by ellipsometry in a wide range of wavelengths, and the set of spectral and electronic characteristics was determined. It was shown that optical absorption in a region of interband transitions has a satisfactory explanation within a scope of calculations of density of electronic states carried out.