Interband optical absorption in compounds CoxGa100-x

L. V. Nomerovannaya, V. I. Anisimov, N. A. Popova, N. B. Gorina

Research output: Contribution to journalArticlepeer-review

Abstract

Optical absorption in intermetallic compounds CoxGa100-x (x=47-62 at.% Co) with crystal structure CsCl has been studied in the spectral range E=1-10 eV. The electronic structures of ordered equiatomic CoGa and of an antistructural cobalt atom in the gallium sublattice are calculated using the Green's functions method in the linearized muffin-tin orbitals approximation. The appearance of a peak in the density of states near the Fermi level as a result of allowing for structural defects provides a qualitative explanation for the additional optical absorption at E>0.8 eV compared with the case of a perfect crystal.

Original languageEnglish
Pages (from-to)49-53
Number of pages5
JournalPhysics of Metals and Metallography
Volume65
Issue number6
Publication statusPublished - 1989
Externally publishedYes

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