金属间化物（Sm_（1－x）Dy_x）_2Fe_（17）N_y中的各向异性机制探讨  

A Study of The Anisotropy Mechanism in Intermetallic Compounds (Sm_(1-x)Dy_x)_2Fe_(17)N_y

作　　者：罗广圣[1] 贺伦燕[1] 

机构地区：[1]南昌大学

出　　处：《稀土》1995年第5期6-9,共4页Chinese Rare Earths

基　　金：江西省自然科学基金

摘　　要：本文主要通过变温穆斯堡尔谱等手段研究金属间化物（Ｓｍ（１－ｘ）Ｄｙｘ）２Ｆｅ（１７）Ｎｙ（ｘ＝０．４；２＜ｙ＜３）的自旋重取向现象，进而对其中的各向异性产生机制进行分析。由实验结果得出Ｄｙ次格子的单轴各向异性较强，导致在１５０Ｋ～１００Ｋ较低温度下出现自旋重取向现象。The spin reorientation and the anisotropy mechanism of intermetallic compound (Sm(1-x)Dyx)2Fe(17)Ny (x =0. 4; 2<y<3) Were Studied by Mossbauer spectroscopy at different tem-peratures. The exporimental results show That the uniaxial anisotropy of Dy sublattice in intermet allic compound (Sm(1-x)Dyx)2Fe(17)Ny is stronger, resulting in the spin reorientation of the magnetization in the temperature ranging from 150K to 100K.

关 键 词：金属间化物 穆斯堡尔谱 各向异性 稀土 永磁材料 

分 类 号：O481.4[理学—固体物理] O614[理学—物理]