Open AccessОптические свойства монокристалла FeGe-=SUB=-2-=/SUB=-
Author(s) -
Ю.П. Сухоруков,
Р. И. Зайнуллина,
A. A. Buchkevich,
Н. Г. Бебенин
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.09.46400.074
Subject(s) - condensed matter physics , anisotropy , antiferromagnetism , phonon , spectral line , relaxation (psychology) , charge carrier , spiral (railway) , reflection (computer programming) , phase (matter) , range (aeronautics) , crystal (programming language) , materials science , phase transition , atmospheric temperature range , chemistry , physics , optics , computer science , psychology , social psychology , mathematical analysis , mathematics , organic chemistry , astronomy , meteorology , composite material , programming language
The reflection spectra of FeGe_2 single crystal in a wide spectral region and in the temperature range from 80 to 310 K are studied. The energy of plasma oscillations, the relaxation frequency of charge carriers, and phonon frequencies are determined. Anisotropy of the optical properties is studied. It is shown that the phase transition from the collinear antiferromagnetic structure to the spiral one is accompanied by a significant rearrangement of electronic states.