Influence of Non-Magnetic Substitutional Atoms on Spontaneous Moment and Curie Temperature of Ce_2Co_(17) Compounds  

作　　者：胡社军 刘正义 De Boer F R Buschow K H J 

机构地区：[1]Faculty of Materials and Energy, Guangdong University of Technology, Guangzhou 510643, China

出　　处：《Journal of Rare Earths》2002年第4期273-277,共5页稀土学报（英文版）

基　　金：ProjectsupportedbytheNSFC ( 5 97710 2 6 )andtheDutchTechnologyFoundation (STW )

摘　　要：The structure and magnetic properties of Ce 2Co 17-xM x(M=Ga,Al and Si) compounds for M concentrations up to x=5 were studied by means of X-ray diffraction and magnetic measurements. The experimental results show that the Curie temperatures and Co spontaneous magnetization decrease significantly with increasing the addition of non-magnetic substitutional atoms, and that Si which has a minimum solid solubility in Ce 2Co 17 causes a largest reduction of Curie temperature, spontaneous magnetization and moment per Co atom compared with Ga and Al.The structure and magnetic properties of Ce 2Co 17-xM x(M=Ga,Al and Si) compounds for M concentrations up to x=5 were studied by means of X-ray diffraction and magnetic measurements. The experimental results show that the Curie temperatures and Co spontaneous magnetization decrease significantly with increasing the addition of non-magnetic substitutional atoms, and that Si which has a minimum solid solubility in Ce 2Co 17 causes a largest reduction of Curie temperature, spontaneous magnetization and moment per Co atom compared with Ga and Al.

关 键 词：rare earths Ce  2Co    17 compounds Curie temperature spontaneous magnetization 

分 类 号：O482.56[理学—固体物理]