Magnetocaloric effect of the Gd3-x TbxCo system

被引：8

作者：

Guzik, A. ^{[1
]}

Talik, E. ^{[1
]}

Zajdel, P. ^{[1
]}

机构：

[1] Univ Silesia, Inst Phys, 75 Pulku Piechoty 1, PL-41500 Chorzow, Poland

来源：

INTERMETALLICS | 2020年 / 118卷

关键词：

MAGNETIC-PROPERTIES; GD; DY;

D O I：

10.1016/j.intermet.2019.106686

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：

Gd3-xTbxCo compounds with x = 0, 0.25, 0.5, 1, 1.5, 2, 2.5 and 3 were investigated using structural and magnetic methods. The lattice parameters, and the location of 4c and 8d Wyckoff sites occupied by Gd, Tb, and Co atoms, in an Fe3C orthorhombic type of structure, were refined by the Rietveld method. The magnetic ordering temperature changes linearly with Tb content. The magnetocaloric effect (MCE) in Tb3Co at 77 K and a magnetic field of 7 T is equal to -28.8 J/kgK. An inverse MCE observed in GdTb2Co reaches its maximum value of 6.8 J/kgK at 47 K and a magnetic field of 6 T.

引用

页数：10

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