Effects of exchange interaction and spin-fluctuation on the magnetic and magneto-optic properties of NdF3

被引：0
|
作者：
张国营 [1 ]
夏天 [2 ]
张学龙 [2 ]
薛刘萍 [1 ]
机构：
[1] Department of Physics, College of Science, China University of Mining and Technology
[2] College of Medical Mechanism, Shanghai University of Science and Technology
来源：
Chinese Physics B | 2008年 / 08期
关键词：
exchange interaction; spin-fluctuation; magnetic and MO properties; NdF3; crystal;
D O I：
暂无
中图分类号：
O482.5 [磁学性质];
学科分类号：
070205 ; 0805 ; 080502 ; 0809 ;
摘要：
The exchange interaction between the electrons in the different magnetic ions and the spin-fluctuation of the magnetic ions exist in the paramagnetic media NdF3 . The exchange interaction between the electrons in the different magnetic ions may be equivalent to an effective field H in that is in direct proportion to the magnetization M. The spin-fluctuation of the magnetic ions leads the coefficient of the effective field to vary with temperature. The effective field is given as H in = (0.75+0.22T)×10 5 M in NdF3 . When the secondary crystal field effect is taken into account, the magnetic susceptibility and Verdet constant are calculated for NdF 3 by means of the effective field H in and the applied field H e . The calculated results are in agreement with the measured ones.
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页码：3093 / 3096
页数：4
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