Optical spectroscopy on single semimagnetic quantum dots -: Probing the interaction between an exciton and its magnetic environment

被引：0
|
作者：
Bacher, G [1 ]
Maksimov, AA [1 ]
McDonald, A [1 ]
Schömig, H [1 ]
Welsch, MK [1 ]
Kulakovskii, VD [1 ]
Forchel, A [1 ]
Becker, CR [1 ]
Molenkamp, LW [1 ]
Landwehr, G [1 ]
机构：
[1] Univ Wurzburg, D-97074 Wurzburg, Germany
来源：
PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 2001年 / 224卷 / 02期
关键词：
D O I：
10.1002/1521-3951(200103)224:2<573::AID-PSSB573>3.0.CO;2-F
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Single diluted magnetic semiconductor (DMS) quantum dots are studied by means of photoluminescence spectroscopy and magnetoluminescence. The sp-d exchange interaction between a single electron-hole pair and roughly 100 Mn spins within the dot is demonstrated to result in (i) a significant enhancement (more than one order of magnitude) of the emission linewidth and (ii) a strongly modified magnetic field dependence of the polarization degree in a single DMS quantum dot as compared to a non-magnetic reference sample.
引用
收藏
页码：573 / 577
页数：5
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