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Heat Capacity of Erbium-Doped Gallium-Gadolinium Garnet

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Abstract

In this paper, we compared the results of a heat capacity study of an erbium-doped gallium gadolinium garnet crystal with data for an undoped garnet. The measurements were carried out in the temperature range from 1.9 to 220 K and in magnetic fields from 0 to 9 T. The temperature dependences of the specific heat were interpreted with allowance for the Schottky contributions due to the Gd3+ and Er3+ ions and the contributions of the thermal vibrations of the crystal lattice. The values of entropy and magnetic entropy are calculated.

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Authors and Affiliations

  1. St. Petersburg State University, Saint Petersburg, 199034, Russia

    I. E. Lezova, E. V. Shevchenko & E. V. Charnaya

  2. Institute of Radioengineering and Electronics, Russian Academy of Science, Moscow, 125009, Russia

    E. N. Khazanov & A. V. Taranov

Authors
  1. I. E. Lezova
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  2. E. V. Shevchenko
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  3. E. V. Charnaya
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  4. E. N. Khazanov
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  5. A. V. Taranov
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Correspondence to I. E. Lezova.

Additional information

Original Russian Text © I.E. Lezova, E.V. Shevchenko, E.V. Charnaya, E.N. Khazanov, A.V. Taranov, 2018, published in Fizika Tverdogo Tela, 2018, Vol. 60, No. 10, pp. 1906–1910.

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Lezova, I.E., Shevchenko, E.V., Charnaya, E.V. et al. Heat Capacity of Erbium-Doped Gallium-Gadolinium Garnet. Phys. Solid State 60, 1948–1952 (2018). https://doi.org/10.1134/S1063783418100165

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  • DOI: https://doi.org/10.1134/S1063783418100165

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