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

页码：988 / 991

页数：4

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