Magnetic and magnetocaloric properties of spin-glass material DyNi0.67Si1.34

被引：5
作者：
Chen, X. [1 ,2 ]
Mudryk, Y. [1 ]
Pathak, A. K. [1 ]
Feng, W. [1 ]
Pecharsky, V. K. [1 ,3 ]
机构：
[1] Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
[2] Neijiang Normal Univ, Coll Phys & Elect Informat Engn, Neijiang 641100, Peoples R China
[3] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2017年 / 436卷
基金：
中国博士后科学基金;
关键词：
Rare earth intermetallics; Magnetic frustration; Magnetocaloric effect; METAMAGNETIC TRANSITION; PHASE-TRANSITION; RARE-EARTH; TB; GD; SILICIDES;
D O I：
10.1016/j.jmmm.2017.04.033
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Structural, magnetic, and magnetocaloric properties of DyNi0.67Si1.34 were investigated using X-ray powder diffraction, magnetic susceptibility, and magnetization measurements. X-ray powder diffraction pattern shows that DyNi0.67Si1.34 crystallizes in the AlB2-type hexagonal structure (space group: P6/mmm, No. 191, a = b = 3.9873(9) angstrom, and c = 3.9733(1) angstrom). The compound is a spin-glass with the freezing temperature T-G = 6.2 K. The ac magnetic susceptibility measurements confirm magnetic frustration in DyNi0.67Si1.34. The maximum value of the magnetic entropy change determined from M(H) data is -16.1 J/kg K at 10.5 K for a field change of 70 kOe. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：91 / 96
页数：6
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