Anisotropic magnetocaloric effect in TbNiAl

被引：11
|
作者：
Kastil, J. [1 ]
Javorsky, P. [1 ]
Pospisil, J. [1 ]
机构：
[1] Charles Univ Prague, Fac Math & Phys, Dept Condensed Matter Phys, CR-12116 Prague 2, Czech Republic
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 20期
关键词：
Magnetocaloric effect; TbNiAl; Magnetism; Anisotropy; TRANSITION; ORDER;
D O I：
10.1016/j.jallcom.2011.02.001
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We present study of the anisotropic magnetocaloric effect in TbNiAl crystallizing in the hexagonal ZrNiAl-type structure. TbNiAl orders antiferromagnetically below T-N = 47K and undergoes second magnetic phase transition to another antiferromagnetic structure at T-1 = 23K. Magnetization and specific heat measurements on single crystal revealed strongly anisotropic magnetocaloric effect. The large effect occurs for field applied along the hexagonal c-axis whereas the entropy change is almost zero for the perpendicular field direction. Plateau-like character of the determined temperature change is observed between T-N and T-1. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：5931 / 5934
页数：4
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