Dynamics of photoexcited carriers in molecular beam epitaxy grown semimagnetic epilayers in magnetic fields

被引:11
作者
Debnath, MC [1 ]
Souma, I
Shirado, E
Mitsu, H
Sato, T
Shen, JX
Oka, Y
机构
[1] Tohoku Univ, RISM, Sendai, Miyagi 9808577, Japan
[2] Japan Sci & Technol Corp, CREST, Kawaguchi 3320012, Japan
关键词
D O I
10.1063/1.369998
中图分类号
O59 [应用物理学];
学科分类号
摘要
Time-resolved photoluminescence has been measured on molecular beam epitaxy grown Cd1-xMnxTe epilayer samples. The photoluminescence intensity of magnetic polarons exhibits a very long emission tail. The observed phenomenon is attributed to the conversion of the dark excitons to dipole allowed transitions by a spin-flip process. The magnetic field dependence of the two-exponential decay property is discussed within the frame of giant Zeeman splitting, the spin-flip scattering, and the formation of the magnetic polarons. (C) 1999 American Institute of Physics. [S0021-8979(99)43208-6].
引用
收藏
页码:5941 / 5943
页数:3
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