Crystal field analysis of the magnetization curves of R2Fe17 and R2Fe17H3 (R=Tb,Ho,Er)
Ma Ru-Gui(马如贵)a), Yan Yu(闫羽)a)b)†, Zhang Yan-Xiang(张艳香)c), Du Xiao-Bo(杜晓波)a), Wang Xiang-Qun(王向群)a), Su Feng(苏峰)a), and Jin Han-Min(金汉民)a)
a Department of Physics, Jilin University, Changchun 130021, China; b State Key Laboratory for Superhard Materials, Jilin University, Changchun 130012, China ; c Jilin Provincial Institute of Education, Changchun 130022, China
Abstract In this paper the values of the crystalline-electric-field parameters Anm for R2Fe17 and R2Fe17H3 (R=Tb,Ho,Er) are evaluated by fitting calculations to the magnetization curves measured on the single crystal at several temperatures. The fitted Anm for R2Fe17 are strikingly different from those for the corresponding R2Fe17H3. The energy gaps between the lowest four energy levels for Ho ions in Ho2Fe17 can be reproduced by using the fitted Anm and exchange field 2μBHex, which estimated from the fit of the temperature dependence of the spontaneous magnetization combined with inelastic neutron scattering experiment.
Received: 08 February 2006
Revised: 24 March 2006
Accepted manuscript online:
Fund: Project supported by Department of Science and Technology of Jilin Province and the National Natural Science Foundation of China (Grant No 10304006).
Cite this article:
Ma Ru-Gui(马如贵), Yan Yu(闫羽), Zhang Yan-Xiang(张艳香), Du Xiao-Bo(杜晓波), Wang Xiang-Qun(王向群), Su Feng(苏峰), and Jin Han-Min(金汉民) Crystal field analysis of the magnetization curves of R2Fe17 and R2Fe17H3 (R=Tb,Ho,Er) 2006 Chinese Physics 15 2146
The 50 nm-thick yttrium iron garnet films with perpendicular magnetic anisotropy Shuyao Chen(陈姝瑶), Yunfei Xie(谢云飞), Yucong Yang(杨玉聪), Dong Gao(高栋), Donghua Liu(刘冬华), Lin Qin(秦林), Wei Yan(严巍), Bi Tan(谭碧), Qiuli Chen(陈秋丽), Tao Gong(龚涛), En Li(李恩), Lei Bi(毕磊), Tao Liu(刘涛), and Longjiang Deng(邓龙江). Chin. Phys. B, 2022, 31(4): 048503.
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