High-field Faraday rotation in II-VI-based semimagnetic semiconductors

被引：3
|
作者：
Savchuk, AI [1 ]
Fediv, VI
Nikitin, PI
Perrone, A
Tatzenko, OM
Platonov, VV
机构：
[1] State Univ, Dept Phys Elect, UA-274012 Chernovtsy, Ukraine
[2] Moscow Gen Phys Inst, Moscow 117942, Russia
[3] Univ Lecce, Dept Phys, Natl Inst Matter Phys, I-73100 Lecce, Italy
[4] Russian Expt Phys R&D Inst, Moscow, Russia
来源：
JOURNAL OF CRYSTAL GROWTH | 1998年 / 184卷
关键词：
D O I：
10.1016/S0022-0248(97)00799-9
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The effects of d-d exchange interaction have been studied by measuring high-field Faraday rotation in II-VI-based semimagnetic semiconductors. For Cd1-xMnxTe crystals with x = 0.43 and at room temperature a saturation in magnetic field dependence of the Faraday rotation has been observed. In the case of low temperature (T = 4.2 K) and low Mn content (x = 0.05), two steps for Cd1-xMnxTe and one step for Cd1-xMnxSe have been found on this dependence. These steps are interpreted by the nearest-neighbour cluster model. The evaluated exchange constant J(NN) is in agreement with direct magnetization measurements. Peculiarity of high-field Faraday rotation in Fe-and Co-based semimagnetic semiconductors has been discussed. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：988 / 991
页数：4
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