%0 Journal Article
%T Structure and magnetic properties of Er3(Fe, Co, M)29 compounds (M=Cr, V, Ti, Mn, Ga, Nb)<br>Er3(Fe, Co, M)29化合物(M=Cr, V, Ti, Mn, Ga, Nb)的结构与磁性
%A Luo Hong-Zhi
%A Jia Lin
%A Li Yang-Xian
%A Meng Fan-Bin
%A Shen Jiang
%A Chen Nan-Xian
%A Wu Guang-Heng
%A Yang Fu-Ming
%A <br>罗鸿志
%A 贾 琳
%A 李养贤
%A 孟凡斌
%A 申 江
%A 陈难先
%A 吴光恒
%A 杨伏明
%J 物理学报
%D 2005
%I 
%X A series of Er_3(Fe, Co, M)_ 29 (M=Cr, V, Ti, Mn, Ga, Nb) compounds has been synthesized and their structure and magnetic properties have been investigates by means of x-ray diffraction and magnetic measurements. It is found that the Fe-based Er_3(Fe,M)_ 29 compounds crystallize in the Th_2Ni_ 17-type structure with disordered substitution of the dumbbell Fe-Fe, instead of Nd_3(Fe,Ti)_ 29-type structure, so its chemical formula can also be expressed as Er_ 2-n(Fe,M)_ 17 2n (n=0.2). Substitution of M for Fe in the Er_3Fe_ 29 compound leads to an increase in the Curie temperature. With the substitution of Co for Fe in the Er_3(Fe,M)_ 29 (M=Cr, V) compounds, a new phase was found which crystallizes in monoclinic symmetry. The anisotropy of the Er_3Fe_ 19.5Co_6V_ 3.5 compound at room temperature is of easy-axis type and a spin reorientation transition from the easy-axis type to the easy-plane type anisotropy occurs when temperature decreases to 162K. A first order magnetization process (FOMP) was observed in the HMD magnetization curve of Er_3Fe_ 19.5Co_6V_ 3.5 at 5K, the critical field of the FOMP was derived to be 3.8T.
%K rare earth transition metal intermetallic compounds
%K crystal structure
%K magnetocrystalline anisotropy<br>稀土金属间化合物，
%K 晶体结构，
%K 磁晶各向异性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=2E79A772A18F7FF6&yid=2DD7160C83D0ACED&vid=318E4CC20AED4940&iid=708DD6B15D2464E8&sid=468E14A711451368&eid=66EEAD1D843A9209&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=24