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

作者机构：Guangxi Key Laboratory of Nuclear Physics and Nuclear TechnologyGuangxi Normal UniversityGuilin 541004China School of Electronic Engineering and AutomationGuilin University of Electronic TechnologyGuilin 541004China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2021年第30卷第6期

页      面：564-569页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

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 

主　　题：easy magnetization direction(EMD) magnetostriction spin-reorientation 

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.