Magnetic properties and magnetic exchange interactions in Gd1-xREx (RE=Pr, Nd) alloys

被引：7

作者：

Xiao Sufen ^{[1
]}

Chen Yungui ^{[1
]}

机构：

[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610065, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2016年 / 34卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Gd1-xREx; (RE=Pr; Nd); alloys; Curie temperature; magnetic moment; de Gennes factor G; rare earths; MAGNETOCALORIC PROPERTIES; REFRIGERATION; PHASE;

D O I：

10.1016/S1002-0721(16)60054-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The effect of Pr, Nd addition on the magnetic properties and magnetic exchange interaction of gadolinium alloys was systematically studied. Curie temperature T-C and magnetic moment of Gd1-xREx (RE=Pr, Nd) systems with x<0.05 were investigated. When x<0.05, Pr and Nd formed respectively with Gd continuous solid solution which has the crystalline structure HCP. Study on the magnetic behavior indicated that at near room temperature, the simple ferromagnetism prevailed in these two systems of alloy. The Curie temperature and magnetic moment of Gd1-xREx alloy decreased with RE (RE= Pr, Nd) content x increasing. The de Gennes factor of Gd1-xREx alloy which was associated with the exchange interaction between magnetic spin components also decreased with RE content increasing. The above results showed that the magnetic exchange interaction between magnetic atoms in gadolinium could be effectively changed by the Pr, Nd addition.

引用

页码：489 / 494

页数：6

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