Exchange Interactions and Magnetocaloric Effects in Rare-Earth-Transition Metal Compounds

被引：0
|
作者：
Burzo, Emil [1 ]
机构：
[1] Univ Babes Bolyai, Fac Phys, RO-400084 Cluj Napoca, Romania
来源：
PROCEEDINGS OF THE PHYSICS CONFERENCE TIM-08 | 2009年 / 1131卷
关键词：
rare-earth compounds; magnetic properties; magnetocaloric effects; MAGNETIC-PROPERTIES;
D O I：
暂无
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetic properties and magnetocaloric effects of the (GdxY1-x)(n+1)Co3n+5B2n compounds with n=2 and n=3 are reported. The saturation mean cobalt moments are strongly dependent on composition, while effective cobalt moments are nearly constant for a given series. The ratio between the number of cobalt spins determined from effective moment and that obtained from saturation data shows a linear trend on the reciprocal exchange field. Maxima values of entropy changes are dependent on composition, being located between 30 K and 150 K. Very high values of relative cooling powers were shown.
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页码：75 / 80
页数：6
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