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.

引用

页码：3093 / 3096

页数：4

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