This article is cited in 6 papers

Dielectrics

Heat capacity of erbium-doped gallium-gadolinium garnet

I. E. Lezova^a, E. V. Shevchenko^a, E. V. Charnaya^a, E. N. Khazanov^b, A. V. Taranov<sup>b

a</sup> Saint Petersburg State University
^b Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow

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 Gd$^{3+}$ and Er$^{3+}$ ions and the contributions of the thermal vibrations of the crystal lattice. The values of entropy and magnetic entropy are calculated.

Received: 24.04.2018

DOI: 10.21883/FTT.2018.10.46516.115

 English version: Physics of the Solid State, 2018, 60:10, 1948–1952

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