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
Abstract The magnetostriction, magnetization, and spin reorientation properties in Pr(GaxFe1-x)1.9 alloys have been investigated by high-precision x-ray diffraction (XRD) step scanning, magnetization, and Mössbauer spectra measurements. Ga substitution reduces the magnetostriction (λ||) with magnetic field H ≥ 8 kOe (1 Oe=1.33322×102 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, Mössbauer spectra, and the abnormal temperature dependence of magnetization. An increase of the spin reorientation temperature (TSR) due to Ga substitution is found in the phase diagram, which is different from the decrease one in many R(TxFe1-x)1.9 (T=Co, Al, Mn) alloys. The present work provides a method to control the easy magnetization direction (EMD) or TSR for developing an anisotropic compensation system.
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 51901052), the Science Foundation of Guangxi Zhuang Autonomous Region, China (Grant No. 2018GXNSFAA281294), and the Training Programme for Thousands of Core Teachers in Guangxi Zhuang Autonomous Region, China.
Corresponding Authors:
Yan-Mei Tang, Xiang Li
E-mail: tangym0707@163.com;xli1984@hotmail.com
Cite this article:
Min-Yu Zeng(曾敏玉), Qing Tang(唐庆), Zhi-Wei Mei(梅志巍), Cai-Yan Lu(陆彩燕), Yan-Mei Tang(唐妍梅), Xiang Li(李翔), Yun He(何云), and Ze-Ping Guo(郭泽平) Magnetostriction and spin reorientation in ferromagnetic Laves phase Pr(GaxFe1-x)1.9 compounds 2021 Chin. Phys. B 30 067504
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