中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
CALCULATION OF SPIN-REORIENTATION TEMPERATURE IN ND2FE14B

文献类型:期刊论文

作者ZHONG, XF ; CHING, WY ; LAI, WY
刊名JOURNAL OF APPLIED PHYSICS
出版日期1991
卷号70期号:10页码:6146
关键词MAGNETIC-PROPERTIES ANISOTROPY Y2FE14B ENERGY
ISSN号0021-8979
通讯作者ZHONG, XF: CHINESE ACAD SCI,INST SEMICOND,BEIJING,PEOPLES R CHINA.
中文摘要The spin-reorientation phenomenon in Nd2Fe14B has been investigated using an angular dependent free energy approach. A magnetic Hamiltonian which includes the crystal electric field term and the exchange term has been established using realistic band structure results. The temperature dependence of the molecular field is accounted for by introducing the Brillouin function and the magnetic Hamiltonian is diagonalized within the ground state multiplet of the Nd ion. The eigenstates are then used to form the partition function for the free energy. At each temperature, the direction of the molecular field is obtained by searching for the minimum in the angular parameter space of the free energy. Our calculations show that for Nd2Fe14B, the net magnetic anisotropy direction is canted away from the c axis at a temperature close to the experimentally reported spin-reorientation temperature of 150 K. The temperature dependence of the magnetic structure is found to be very sensitive to the size of the second order crystal field parameter B20.
收录类别SCI
语种英语
公开日期2013-09-17
源URL[http://ir.iphy.ac.cn/handle/311004/34445]  
专题物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
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ZHONG, XF,CHING, WY,LAI, WY. CALCULATION OF SPIN-REORIENTATION TEMPERATURE IN ND2FE14B[J]. JOURNAL OF APPLIED PHYSICS,1991,70(10):6146.
APA ZHONG, XF,CHING, WY,&LAI, WY.(1991).CALCULATION OF SPIN-REORIENTATION TEMPERATURE IN ND2FE14B.JOURNAL OF APPLIED PHYSICS,70(10),6146.
MLA ZHONG, XF,et al."CALCULATION OF SPIN-REORIENTATION TEMPERATURE IN ND2FE14B".JOURNAL OF APPLIED PHYSICS 70.10(1991):6146.

入库方式: OAI收割

来源:物理研究所

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