%0 Journal Article
%T The anisotropy of Gd－Fe exchange interaction for Gd2Fe17 and Gd2Fe17H3
%A 闫羽
%A 许淑伟
%A 金汉民
%A 杜晓波
%A 苏峰
%J 中国物理 B
%D 2004
%I 
%X The magnetization curves along the crystal axes for Gd_2Fe_{17} and Gd_2Fe_{17}H_3 were analysed based on the single-ion model. If the Gd－Fe exchange interaction has been taken as isotropic as usual, the fitted values of magneto-crystalline anisotropy of the Fe sublattices in Gd_2Fe_{17} and Gd_2Fe_{17}H_3 would become unreasonably different from those of the corresponding Y or Lu compounds. It was shown that the large difference is caused by the neglect of the anisotropy of the Gd－Fe exchange interaction.
%K 磁化曲线
%K 磁异性
%K 土壤化合物
%K 关联交换
%K 结晶状态
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=6F60F4BF37F2C6B62D204A7FC3B57E2C&yid=D0E58B75BFD8E51C&vid=FC0714F8D2EB605D&iid=708DD6B15D2464E8&sid=DCB97F70EF167067&eid=E4BB32FC813F450F&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=15