Abstract
The optical properties of Heusler alloys Fe2 MeAl (Me = Ti, V, Cr, Mn, Fe, Co, or Ni) and Fe2MnSi have been studied, and their optical spectra have been calculated. Substitution for the Me atom is found to cause significant changes in the band-energy spectrum, especially in the vicinity of the Fermi level. These changes are accompanied by considerable variations in the optical characteristics of alloys. The optical properties of Fe2 MeAl alloys (Me = Ti, Fe, Co, or Ni) are typical of metals. The anomalous behavior of the optical properties of alloys with Me = V, Cr, or Mn is determined by the electronic states at the Fermi level.
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Original Russian Text © E.I. Shreder, A.D. Svyazhin, A.A. Makhnev, 2015, published in Optika i Spektroskopiya, 2015, Vol. 119, No. 6, pp. 960–965.
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Shreder, E.I., Svyazhin, A.D. & Makhnev, A.A. Evolution of the electronic structure and optical properties of iron-based Heusler alloys. Opt. Spectrosc. 119, 969–973 (2015). https://doi.org/10.1134/S0030400X1511020X
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DOI: https://doi.org/10.1134/S0030400X1511020X