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Electronic Structure and Optical Properties of the Mn2CrAl Heusler Alloy

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Abstract

The electronic structure of the Mn2CrAl Heusler alloy is calculated and its optical properties are studied in this work. The anomalous behavior of the optical properties of the alloy in the IR region of spectrum, namely, the absence of the contribution of intraband absorption and the low level of interband absorption, were found. Such peculiarities of the optical spectrum indicate the existence of low-energy gaps in the band spectrum of the alloy, which was found by calculations of electronic structure of the alloy.

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ACKNOWLEDGMENTS

We thank E.D. Chernov for his assistance in processing the calculated data.

Funding

Calculations of electronic structure were performed in terms of state assignment of the Ministry of Science and Higher Education of the Russian Federation (theme Electron no. АААА-А18-118020190098-5). Studies of optical properties were supported by the Russian Foundation for Basic Research (project no. 19-52-45008-Ind-а).

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Authors and Affiliations

  1. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, 620108, Ekaterinburg, Russia

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

  2. Ural Federal University Named after the First President of Russia B.N. Yeltsin, Institute of Natural Sciences and Mathematics, 620002, Ekaterinburg, Russia

    A. V. Lukoyanov

  3. Central University of Rajasthan, NH-8, Bandar Seendri, 305817, Rajasthan, India

    S. Dash & A. Patra

  4. Department of Materials Science and Technologies, CSIR National Institute for Interdisciplinary Science and Technology, 695019, Trivandrum, Kerala, India

    M. Vasundhara

Authors
  1. E. I. Shreder
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  2. A. V. Lukoyanov
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  3. A. A. Makhnev
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  4. S. Dash
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  5. A. Patra
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  6. M. Vasundhara
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Corresponding author

Correspondence to E. I. Shreder.

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Translated by N. Kolchugina

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Shreder, E.I., Lukoyanov, A.V., Makhnev, A.A. et al. Electronic Structure and Optical Properties of the Mn2CrAl Heusler Alloy. Phys. Metals Metallogr. 121, 532–536 (2020). https://doi.org/10.1134/S0031918X20060125

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