Magnetic properties and magnetic exchange interactions in Gd_(1–x)RE_x(RE=Pr,Nd) alloys  

作　　者：肖素芬 陈云贵 

机构地区：[1]College of Materials Science and Engineering,Sichuan University

出　　处：《Journal of Rare Earths》2016年第5期489-494,共6页稀土学报（英文版）

基　　金：Project supported by the Key Project of National Natural Science Foundation of China(51176050)

摘　　要：The effect of Pr,Nd addition on the magnetic properties and magnetic exchange interaction of gadolinium alloys was systematically studied.Curie temperature TC and magnetic moment of Gd（1–x）REx（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 Gd（1–x）REx alloy decreased with RE（RE= Pr,Nd）content x increasing.The de Gennes factor of Gd（1–x）REx 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.The effect of Pr,Nd addition on the magnetic properties and magnetic exchange interaction of gadolinium alloys was systematically studied.Curie temperature TC and magnetic moment of Gd（1–x）REx（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 Gd（1–x）REx alloy decreased with RE（RE= Pr,Nd）content x increasing.The de Gennes factor of Gd（1–x）REx 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.

关 键 词：Gd（1–x）REx（RE=Pr Nd）alloys Curie temperature magnetic moment de Gennes factor G rare earths 

分 类 号：TG146.45[一般工业技术—材料科学与工程]