Influence of Non-Magnetic Substitutional Atoms on Spontaneous Moment and Curie Temperature of Ce2Co17 Compounds
来源期刊：JOURNAL OF RARE EARTHS2002年第4期
论文作者：刘正义 胡社军
Key words：rare earths; Ce2Co17 compounds; Curie temperature; spontaneous magnetization;
Abstract: The structure and magnetic properties of Ce2Co17-xMx(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 Ce2Co17 causes a largest reduction of Curie temperature, spontaneous magnetization and moment per Co atom compared with Ga and Al.
刘正义1，胡社军2
(1.Mechano-Electronic Engineering Department, South China University of Technology, Guangzhou 510641, China;
2.Faculty of Materials and Energy, Guangdong University of Technology, Guangzhou 510643, China)
Abstract:The structure and magnetic properties of Ce2Co17-xMx(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 Ce2Co17 causes a largest reduction of Curie temperature, spontaneous magnetization and moment per Co atom compared with Ga and Al.
Key words:rare earths; Ce2Co17 compounds; Curie temperature; spontaneous magnetization;
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