Rotational magnetocaloric effect in TbAl3(BO3)(4)

Pashchenko, M. I.; Bedarev, V. A.; Merenkov, D. N.; Bludov, A. N.; Pashchenko, V. A.; Gnatchenko, S. L.; Zajarniuk, T.; Szewczyk, A.; Temerov, V. L. LOW TEMPERATURE PHYSICS, 43 (5):631-635; Doi: 10.1063/1.4985220 MAY 2017
A rotational magnetocaloric effect is predicted in the TbAl3(BO3)4 crystal based on the results of measuring field dependences of magnetization and the temperature dependence of heat capacity. The effect is modeled using the quasi-doublet approximation. Changes to the crystal entropy at constant temperature are determined, as well as at varying temperature under adiabatic conditions. The refrigerant capacity of the crystal is estimated. It is shown that terbium aluminum borate is a promising material for magnetic cooling.