Fizika Nizkikh Temperatur: Volume 43, Number 5 (May 2017), p. 789-794    ( to contents , go back )

Rotational magnetocaloric effect in the TbAl3(BO3)4

M.I. Pashchenko, V.A. Bedarev, D.M. Merenkov, O.M. Bludov, V.O. Pashchenko, S.L. Gnatchenko

B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Nauky Ave., Kharkiv 61103, Ukraine
E-mail: bedarev@ilt.kharkov.ua

T. Zajarniuk and A. Szewczyk

Institute of Physics, Polish Academy of Sciences, Warsaw, Poland

V.L. Temerov

Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation

Received November 4, 2016

Abstract

Rotational magnetocaloric effect in TbAl3(BO3)4 single crystal was predict by using measurements of the field dependences of magnetization and the temperature dependence of heat capacity. This effect has been modeled within the quasidublet approximation. The isothermal entropy changes, refrigerant capacity and adiabatic temperature changes were estimated. It was shown that the terbium aluminum borate may be a promising material for magnetic refrigeration.

PACS: 75.30.Sg Magnetocaloric effect, magnetic cooling;
PACS: 75.30.Gw Magnetic anisotropy;
PACS: 65.40.Ва Heat capacity;
PACS: 65.40.gd Entropy.

Key words: rotating magnetocaloric effect, entropy, heat capacity, magnetization, refrigerant capacity.

Published online: March 24, 2017

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