Optical properties of heusler alloys Co2FeSi, Co2FeAl, Co2CrAl, and Co2CrGa

被引：0
作者：
E. I. Shreder
A. D. Svyazhin
K. A. Belozerova
机构：
[1] Russian Academy of Sciences,Institute of Metal Physics, Ural Branch
来源：
The Physics of Metals and Metallography | 2013年 / 114卷
关键词：
Heusler alloys; optical properties; electronic structure;
D O I：
暂无
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学科分类号：
摘要：
The results of an investigation of optical properties and the calculations of the electronic structure of Co2FeSi, Co2FeAl, Co2CrAl, and Co2CrGa Heusler alloys are presented. The main focus of our attention is the study of the spectral dependence of the real part (ɛ1) and imaginary part (ɛ2) of the dielectric constant in the range of wavelengths λ = 0.3–13 μm using the ellipsometric method. An anomalous behavior of the optical conductivity σ(ω) has been found in the infrared range in the Co2CrAl and Co2CrGa alloys, which differs substantially from that in the Co2FeSi and Co2FeAl alloys. The results obtained are discussed based on the calculations of the electronic structure.
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页码：904 / 909
页数：5
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