Magnetic Properties of Hf0.8Ta0.2（Fe0.97A0.03）2 （A=Al, Co, Mn） Systems  

作　　者：黄彦君 蒋中英 陈楠 韩志达 厉淑贞 夏元复 

机构地区：[1]Department of Physics, Nanjing University, Nanjing 210093

出　　处：《Chinese Physics Letters》2006年第12期3309-3312,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 20050284003.

摘　　要：Moessbauer studies on the effect of substitution with 3% Al, Co, Mn atoms in the intermetallic compound of Hf0.8Ta0.2Fe2 are reported. The Al substitution leads to increase of the FM-AFM transition temperature and to decrease of the AFM-PM transition temperature. The Co substitution leads to disappearance of the FM state, only showing some FM impurity component, while Mn substituted compound indicates coexistence of FM and AFM states at low temperature. The phenomena imply complex itinerant electron properties in these magnetic systems.Moessbauer studies on the effect of substitution with 3% Al, Co, Mn atoms in the intermetallic compound of Hf0.8Ta0.2Fe2 are reported. The Al substitution leads to increase of the FM-AFM transition temperature and to decrease of the AFM-PM transition temperature. The Co substitution leads to disappearance of the FM state, only showing some FM impurity component, while Mn substituted compound indicates coexistence of FM and AFM states at low temperature. The phenomena imply complex itinerant electron properties in these magnetic systems.

关 键 词：ITINERANT ELECTRON-SYSTEMS PHASE-TRANSITIONS MAGNETOCALORIC PROPERTIES FERROMAGNETIC TRANSITION HF1-XTAXFE2 HF0.8TA0.2FE2 

分 类 号：O484.43[理学—固体物理]