Nd^(3+)的稳定能与晶场参数及磁交换作用的关系  

Relation Between Stabilization Energy,Crystal Field Coefficient and the Magnetic Exchange Interaction for Nd^(3+)

作　　者：张向牧[1] 马文娟[1] 朱明刚[2] 

机构地区：[1]沧州师范学院物理与电子信息系,河北沧州061001 [2]钢铁研究总院功能材料研究所,北京100081

出　　处：《河北师范大学学报（自然科学版）》2011年第6期586-588,共3页Journal of Hebei Normal University：Natural Science

基　　金：国家863计划(2011AA03A401);河北省教育厅科学研究项目(Z2007226)

摘　　要：基于单离子模型,通过对Nd3+磁晶各向异性哈密顿数值的求解,研究了温度趋于0 K时,Nd3+离子稳定能与晶场参数及磁交换作用的关系.结果表明,对于强磁物质(如NdCo5,Nd2Co17,Nd2Fe14B等),Nd3+贡献的稳定能与晶场参数B20近似成正比,而对磁交换作用的变化不敏感.Based on a single-ion model,Hamiltonian form about magnetocrystalline anisotropy for Nd^3＋ ion is solved using the numerical method.The relation between the stabilization energy,crystal field coefficient B02 and the magnetic exchange interaction is studied as temperature approaches to 0 K.The result shows that the stabilization energy contributed by Nd^3＋ is linear approximatively with crystal field coefficient B2^0,but being insensitive to magnetic exchange interaction for strong magnetic substances such as NdCo5,Nd2Co17 and Nd2Fe14B compounds.

关 键 词：磁晶各向异性 单离子模型 磁交换作用 晶场参数 稳定能 

分 类 号：TM273[一般工业技术—材料科学与工程]