期刊
PHYSICS OF METALS AND METALLOGRAPHY
卷 113, 期 2, 页码 146-152出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0031918X12020135
关键词
Heusler alloys; optical properties; electronic structure
Results of the investigation of the optical properties and of the calculations of the electronic structure of Fe2NiAl and Fe2MnAl alloys are presented. The main attention is paid to the ellipsometric study of the spectral dependence of the real (E >(1)) and imaginary (E >(2)) parts of the dielectric constant in the range of wavelengths lambda = 0.3-13 mu m. An anomalous behavior of the optical conductivity sigma(omega) at IR frequencies has been revealed in Fe2MnAl, which differs substantially from that in Fe2NiAl. The results obtained are discussed based on the calculations of the electronic structure of the alloys.
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