High-density excitons in a diluted magnetic semiconductor:: Cd1-xMnxTe

被引：1
|
作者：
Kuroda, T [1 ]
Minami, F
Seto, S
机构：
[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan
[2] Ishikawa Natl Coll Technol, Kohoku Ku, Tsubata, Ishikawa 9290392, Japan
来源：
PHASE TRANSITIONS | 2002年 / 75卷 / 7-8期
关键词：
diluted magnetic semiconductor; Cd1-xMnxTe; exciton; magnetic polaron; high density;
D O I：
10.1080/01411590290034182
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Time-resolved magneto photoluminescence in a diluted magnetic semiconductor Cd0.9Mn0.1Te has been carried out with varying exciton density from 10(14) to 10(19) cm(-3). The reduction of the Zeeman shift and that of the magnetic polaron energy was found under strong photoexcitation. The spectral feature is interpreted in terms of the heating of the manganese spin subsystem. Polarization dependence of the spin heating is observed for the first time, revealing the contribution of the spin flip between excitons and magnetic ions to the heating process.
引用
收藏
页码：1019 / 1026
页数：8
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