Electron spin dephasing in n-doped CdTe/(Cd, Mg)Te quantum wells

被引：4
|
作者：
Bratschitsch, R. [1 ]
Chen, Z.
Cundiff, S. T.
Yakovlev, D. R.
Karczewski, G.
Wojtowicz, T.
Kossut, J.
机构：
[1] Natl Inst Stand & Technol, Joint Inst Lab Astrophys, Boulder, CO 80309 USA
[2] Univ Colorado, Dept Phys, Boulder, CO 80309 USA
[3] Univ Dortmund, D-44227 Dortmund, Germany
[4] Polish Acad Sci, Inst Phys, Warsaw, Poland
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2006年 / 243卷 / 10期
关键词：
D O I：
10.1002/pssb.200668015
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We measure the spin dephasing time, T-2(*), of electrons in CdTe/(Cd, Mg)Te single quantum wells with various levels of n-doping using the time-resolved Kerr rotation technique. The formation of negatively charged trions causes strong spin polarization of the two-dimensional electron gas (2DEG). We find the maximum spin dephasing time in the quantum well with a 2DEG density of 8 x 10(10) cm(-2). (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：2290 / 2292
页数：3
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