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Reflection from the Side Face of a PbSb2Te4 Crystal

  • ELECTRONIC PROPERTIES OF SEMICONDUCTORS
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Abstract

The reflectance spectra of the side face of the PbSb2Te4 crystal are for the first time recorded under polarized light in the range of wave numbers 50–4000 cm–1 at room temperature. It is shown that the crystal is highly anisotropic in the directions parallel and orthogonal to the layers of the crystal. The observed specific features of the spectra are attributed to the contribution of plasma oscillations and crystal-lattice vibrations. The parameters of the dielectric function calculated in the context of the Drude–Lorentz model are in agreement with the experimental data.

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Authors and Affiliations

  1. Peter the Great St. Petersburg Polytechnic University, 195251, St. Petersburg, Russia

    S. A. Nemov

  2. St. Petersburg State Electrotechnical University LETI, 197022, St. Petersburg, Russia

    S. A. Nemov & O. S. Stepanova

  3. Transbaíkal State University, 672039, Chita, Russia

    S. A. Nemov

  4. Ioffe Institute, 194021, St. Petersburg, Russia

    Yu. V. Ulashkevich

  5. FAREXPORT, Ltd., 190005, St. Petersburg, Russia

    M. V. Pogumirsky

Authors
  1. S. A. Nemov
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  2. Yu. V. Ulashkevich
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  3. M. V. Pogumirsky
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  4. O. S. Stepanova
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Corresponding author

Correspondence to S. A. Nemov.

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The authors declare that they have no conflict of interest.

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Translated by E. Smorgonskaya

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Nemov, S.A., Ulashkevich, Y.V., Pogumirsky, M.V. et al. Reflection from the Side Face of a PbSb2Te4 Crystal. Semiconductors 54, 282–284 (2020). https://doi.org/10.1134/S1063782620030161

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  • DOI: https://doi.org/10.1134/S1063782620030161

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