Magnetostriction and spin reorientation in ferromagnetic Laves phase Pr(Ga_(x)Fe_(1-x))_(1.9) compounds  

作　　者：Min-Yu Zeng Qing Tang Zhi-Wei Mei Cai-Yan Lu Yan-Mei Tang Xiang Li Yun He Ze-Ping Guo 曾敏玉;唐庆;梅志巍;陆彩燕;唐妍梅;李翔;何云;郭泽平(Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology,Guangxi Normal University,Guilin 541004,China;School of Electronic Engineering and Automation,Guilin University of Electronic Technology,Guilin 541004,China)

机构地区：[1]Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology,Guangxi Normal University,Guilin 541004,China [2]School of Electronic Engineering and Automation,Guilin University of Electronic Technology,Guilin 541004,China

出　　处：《Chinese Physics B》2021年第6期564-569,共6页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 51901052);the Science Foundation of Guangxi Zhuang Autonomous Region,China (Grant No. 2018GXNSFAA281294);the Training Programme for Thousands of Core Teachers in Guangxi Zhuang Autonomous Region,China。

摘　　要：The magnetostriction, magnetization, and spin reorientation properties in Pr(Ga_(x)Fe_(1-x))_(1.9) alloys have been investigated by high-precision x-ray diffraction(XRD) step scanning, magnetization, and Mossbauer spectra measurements. Ga substitution reduces the magnetostriction(λ_(||)) with magnetic field H ≥ 8 kOe(1 Oe = 1.33322×10^(2) Pa), but it also increases the λ|| value when H ≤ 8 kOe at 5 K. Spin-reorientations(SR) are observed in all the alloys investigated, as determined by the step scanned XRD, Mossbauer spectra, and the abnormal temperature dependence of magnetization. An increase of the spin reorientation temperature(T_(SR)) due to Ga substitution is found in the phase diagram, which is different from the decrease one in many R(T_(x) Fe_(1-x))_(1.9)(T = Co, Al, Mn) alloys. The present work provides a method to control the easy magnetization direction(EMD) or T_(SR) for developing an anisotropic compensation system.

关 键 词：easy magnetization direction(EMD) MAGNETOSTRICTION SPIN-REORIENTATION 

分 类 号：TG115[金属学及工艺—物理冶金]