Magnetic Properties of Sm0.7Ho0.3Fe3(BO3)4

被引：0
|
作者：
A. A. Demidov
I. A. Gudim
E. V. Eremin
机构：
[1] Bryansk State Technical University,Kirensky Institute of Physics, Siberian Branch
[2] Russian Academy of Sciences,undefined
来源：
Journal of Experimental and Theoretical Physics | 2012年 / 115卷
关键词：
Easy Plane; Crystal Field Parameter; Trigonal Axis; Spin Reorientation Transition; Initial Magnetic Susceptibility;
D O I：
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中图分类号：
学科分类号：
摘要：
The magnetic properties of a ferroborate single crystal of substituted composition Sm0.7H0.3Fe3(BO3)4 with competing Sm-Fe and Ho-Fe exchange interactions are studied. The measured properties and effects are interpreted in terms of a general theoretical approach based on the molecular field approximation and calculations using the crystal field model for a rare-earth ion. The experimental temperature dependences of the initial magnetic susceptibility in the temperature range 2–300 K, the anomalies in the magnetization curves for B ‖ c and B ⊥ c in fields lower than 1.2 T, and the field and temperature dependences of magnetization in fields lower than 9 T are described. The crystal field parameters and the parameters of the R-Fe and Fe-Fe exchange interactions are determined during the interpretation of the experimental data.
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页码：815 / 828
页数：13
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