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.

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页码：91 / 96

页数：6

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