Regular Article

Electronic structure of DyRhSn and HoRhSn compounds: band calculations and optical study

¹ Institute of Metal Physics, Ural Branch of RAS, Ekaterinburg 620108, Russia
² Ural Federal University, Ekaterinburg 620002, Russia
³ Department of Physics Indian Institute of Technology Bombay, Mumbai 400076, India
⁴ Department of Electronic Science and Engineering, Kyoto University, Kyoto 615-8510, Japan

^a e-mail: knyazev@imp.uran.ru

Received: 21 February 2019
Received in final form: 28 March 2019
Published online: 12 June 2019

Abstract

In this paper experimentally measured optical properties of intermetallic ternary compounds DyRhSn and HoRhSn are reported together with the spin-polarized calculations of the electronic structure within DFT+U method, accounting for electronic correlation effects in the 4f shell of Dy and Ho. A number of spectral and electronic characteristics are determined. The performed calculations allow one to qualitatively interpret the energy dependencies of the interband optical conductivity extracted from experimental ellipsometry measurements.