Magnetocaloric effect in the ternary DyCO3B2 compound

被引：12
作者：
Tolinski, T. [1 ]
Falkowski, M. [1 ]
Kowalczyk, A. [1 ]
Synoradzki, K. [1 ]
机构：
[1] Polish Acad Sci, Inst Mol Phys, PL-60179 Poznan, Poland
来源：
SOLID STATE SCIENCES | 2011年 / 13卷 / 10期
关键词：
Intermetallics; Magnetically ordered materials; Magnetocaloric effect; Heat capacity; Magnetic measurements; MAGNETIC-PROPERTIES; CRYSTAL; HEAT; DY;
D O I：
10.1016/j.solidstatesciences.2011.07.020
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A large magnetocaloric (MCE) effect has been observed for the ternary compound DyCO3B2. This material shows the magnetic ordering below T-C = 22 K for H = 0 T. MCE has been determined based on the isothermal magnetization curves measurements and the isomagnetic heat capacity dependence on temperature. The maximum magnetic entropy change -Delta S-M = 17.5 J kg(-1)K(-1) and the adiabatic temperature change Delta T-ad = 14 K have been observed in the neighborhood of the magnetic phase transition at the magnetic field change of 9 T. The analysis of the magnetic contribution to the specific heat indicates on the important role of the crystal electric field and the anisotropy for the properties of the DyCO3B2 compound. (C) 2011 Elsevier Masson SAS. All rights reserved.
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页码：1865 / 1868
页数：4
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