Open AccessЭлектронная структура интерметаллического соединения GdCuGe
Author(s) -
А.В. Лукоянов,
Ю.В. Князев,
Ю.И. Кузьмин
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.04.45667.288
Subject(s) - antiferromagnetism , gadolinium , ion , condensed matter physics , magnetic moment , intermetallic , electronic band structure , electronic structure , materials science , density of states , hexagonal crystal system , optical conductivity , allowance (engineering) , atomic physics , chemistry , crystallography , physics , mechanical engineering , organic chemistry , alloy , engineering , metallurgy , composite material
The electronic structure of GdCuGe intermetallic compound has been studied. Spin-polarized energy spectrum calculations have been performed by the band method with allowance for strong electron correlations in the 4 f -shell of gadolinium ions. Antiferromagnetic ordering of GdCuGe at low temperatures has been obtained in a theoretical calculation, with the value of the effective magnetic moment of gadolinium ions reproduced in fair agreement with experimental data. The electronic density of states has been analyzed. An optical conductivity spectrum has been calculated for GdCuGe; it reveals specific features that are analogous to the ones discovered previously in the GdCuSi compound with a similar hexagonal structure.