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Dielectric properties of Y3Fe5O12 garnet crystals in the IR range

  • Physical Properties of Crystals
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Abstract

The dielectric properties of a series of yttrium-iron garnet single crystals of different structural and optical quality are investigated in the IR range (400–1000 cm−1). Some regularities of the dependence of the permittivity ε∞ of the garnet samples on the charge-carrier fraction (the parameter k/nk) are revealed. The maximum values of ε∞ are found for the samples containing magnetoactive Sm and Mn ions as dominant impurities, which increase the concentration of conduction electrons and, therefore, provide large values of k/nk. A correlation between ε∞ of the Y3Fe5O12 samples and the concentration of oxygen ions is established.

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Authors and Affiliations

  1. Institute of Solid-State and Semiconductor Physics, Belarussian Academy of Sciences, ul. Brovki 17 Minsk, 220072, Belarus

    I. D. Lomako

  2. Belarussian State University, ul. Leningradskaya 14, Minsk, Belarus

    S. N. Shashkov

  3. Brest State University, bul’v. Kosmonavtov 21, Brest, 224016, Belarus

    I. I. Makoed

Authors
  1. I. D. Lomako
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  2. S. N. Shashkov
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  3. I. I. Makoed
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__________

Translated from Kristallografiya, Vol. 50, No. 6, 2005, pp. 1043–1051.

Original Russian Text Copyright © 2005 by Lomako, Shashkov, Makoed.

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Lomako, I.D., Shashkov, S.N. & Makoed, I.I. Dielectric properties of Y3Fe5O12 garnet crystals in the IR range. Crystallogr. Rep. 50, 966–973 (2005). https://doi.org/10.1134/1.2132404

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  • DOI: https://doi.org/10.1134/1.2132404

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