%0 Journal Article
%T Microscopic origins of the spin-Hamiltonian parameters for 3d2 state ions in a crystal<br>晶体材料中3d2态离子自旋哈密顿参量的微观起源
%A Yang Zi-Yuan
%A <br>杨子元
%J 物理学报
%D 2004
%I 
%X By adopting the intermediate field scheme, the microscopic origins of the spin Hamiltanian (SH) parameters for 3d 2 ion at trigonal ( C 3v , D 3, D 3d ) symmetry, taking into account the spin spin(SS) and spin other orbit(SOO) coupling interactions omitted in previous publications, have been investigated on the basis of complete diagonalization method(CDM). We find that the SH parameters arise from four microscopic mechanisms, i.e. (1) Spin orbit(SO) coupling mechanism; (2) SS coupling mechanism; (3) SOO coupling mechanism; (4) SO SS SOO combined coupling mechanism. The SO coupling mechanism in the four coupling mechanisms is the most important one, but the contributions to zero field splitting parameter D from other three coupling mechanisms cannot be omitted.
%K spin-Hamiltonian parameters
%K 3d
%K 2 state ions
%K trigonal symmetry
%K SS and SOO interactions
%K SO-SS-SOO combined action mechanism<br>自旋哈密顿参量
%K 3d2态离子
%K 三角对称晶场
%K SS与SOO作用
%K SO-SS-SOO联合作用机理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=937B8F4423D92EBF&yid=D0E58B75BFD8E51C&vid=8E6AB9C3EBAAE921&iid=B31275AF3241DB2D&sid=AA64127AB7DEB65D&eid=0702FE8EC3581E51&journal_id=1000-3290&journal_name=物理学报&referenced_num=9&reference_num=37