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Optical properties and electronic structure of alloys Co2Cr1–x Fe x Al (x = 0, 0.4, 0.6, 1.0)

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Abstract

The results of the investigation of the optical properties and calculations of the density of states N(E) of the Heusler alloys Co2Cr1–x Fe x Al (x = 0, 0.4, 0.6, 1.0) have been presented. It has been found that the band spectrum substantially changes, especially in the vicinity of the Fermi level, due to the concentration transition from Co2FeAl to Co2CrAl. These changes are accompanied by significant changes in the optical properties. The optical properties of the Co2FeAl alloy are typical of metals. The anomalous behavior of the optical properties of the alloys with x = 0, 0.4, and 0.6 is determined by the electronic states at the Fermi level.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, ul. Sofii Kovalevskoii 18, Yekaterinburg, 620990, Russia

    E. I. Shreder, A. V. Lukoyanov & V. V. Marchenkov

  2. Ural Federal University named after the First President of Russia B. N. Yeltsin, ul. Mira 19, Yekaterinburg, 620002, Russia

    A. V. Lukoyanov & V. V. Marchenkov

Authors
  1. E. I. Shreder
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  2. A. V. Lukoyanov
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  3. V. V. Marchenkov
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Correspondence to E. I. Shreder.

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Original Russian Text © E.I. Shreder, A.V. Lukoyanov, V.V. Marchenkov, 2016, published in Fizika Tverdogo Tela, 2016, Vol. 58, No. 1, pp. 158–162.

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Shreder, E.I., Lukoyanov, A.V. & Marchenkov, V.V. Optical properties and electronic structure of alloys Co2Cr1–x Fe x Al (x = 0, 0.4, 0.6, 1.0). Phys. Solid State 58, 164–169 (2016). https://doi.org/10.1134/S1063783416010315

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  • DOI: https://doi.org/10.1134/S1063783416010315

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