Crystal field analysis of the magnetic properties of RFe11Ti and RFe11TiH (R=Sm, Tb, Ho)
Su Gang (宿刚)a, Yan Yu (闫羽)ab, Xu Shu-Wei (许淑伟)a, Du Xiao-Bo (杜晓波)a, Jin Han-Min (金汉民)a, Wang Xiang-Qun (王向群)a
a Department of Physics, Jilin University, Changchun 130023, China; b State Key Laboratory for Superhard Materials, Jilin University, Changchun 130012, China
Abstract The crystalline-electric-field parameters Anm for RFe11Ti and RFe11TiH (R=Sm,Tb,Ho) are evaluated by fitting calculations to the magnetization curves measured on the single crystals or on magnetically aligned powder samples at 4.2K and higher temperatures. Interstitial hydrogen atom in RFe_11Ti has been found to have a significant effect on crystalline-electric-field parameters Anm. By using the parameters of exchange field 2$\mu$BHex estimated from inelastic neutron scattering experiments and the fitted Anm, the calculations can reproduce the experimental curves well.
Received: 18 March 2005
Revised: 11 May 2005
Accepted manuscript online:
Fund: Project supported by the Department of Science and Technology of Jilin Province, Specialized Research Fund for the Doctoral Program of Higher Education and the National Natural Science Foundation of China (Grant No 10304006).
Cite this article:
Su Gang (宿刚), Yan Yu (闫羽), Xu Shu-Wei (许淑伟), Du Xiao-Bo (杜晓波), Jin Han-Min (金汉民), Wang Xiang-Qun (王向群) Crystal field analysis of the magnetic properties of RFe11Ti and RFe11TiH (R=Sm, Tb, Ho) 2005 Chinese Physics 14 2127
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