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Spin-spin interaction in magnetic semiconductor quantum dots

被引：22
作者：
Bacher, G
Schömig, H
Scheibner, M
Forchel, A
Maksimov, AA
Chernenko, AV
Dorozhkin, PS
Kulakovskii, VD
Kennedy, T
Reinecke, TL
机构：
[1] Univ Duisburg Essen, Werkstoffe Elektrotech, D-47057 Duisburg, Germany
[2] Univ Wurzburg, D-67074 Wurzburg, Germany
[3] RAS, Inst Solid State Phys, Chernogolovka 142432, Russia
[4] USN, Res Lab, Washington, DC 20375 USA
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2005年 / 26卷 / 1-4期
关键词：
magnetic semiconductor quantum dots; nanoscale magnetization; spin-spin interaction; SPECTROSCOPY; RELAXATION;
D O I：
10.1016/j.physe.2004.08.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Self-assembled Cd(Mn)Se/Zn(Mn)Se quantum dots have been investigated by means of spatially and time-resolved magneto-optical spectroscopy. In such quasi zero-dimensional diluted magnetic semiconductors, the exchange interaction couples the spins of optically generated charge carriers with localized magnetic ion spins. We demonstrate that this can be used on the one hand to monitor nanoscale magnetization with a resolution of < 100 mu(B) by a purely optical technique and on the other hand to optically manipulate the magnetization in a semiconductor quantum dot. (C) 2004 Elsevier B.V. All rights reserved.
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页码：37 / 44
页数：8
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