Magnetic field tuning of the effective g factor in a diluted magnetic semiconductor quantum dot

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	Magnetic field tuning of the effective g factor in a diluted magnetic semiconductor quantum dot
	Chang K ; Xia JB ; Peeters FM
刊名	applied physics letters
	2003
卷号	82 期号:16 页码:2661-2663
关键词	ELECTRON G-FACTOR SPIN INTERACTIONS OPTICAL-SPECTRA SPECTROSCOPY GAAS POLARONS WELLS
ISSN号	0003-6951
通讯作者	chang k,chinese acad sci,inst semicond,nlsm,pob 912,beijing 100083,peoples r china.
中文摘要	the spin interaction and the effective g factor of a magnetic exciton (me) are investigated theoretically in a diluted magnetic semiconductor (dms) quantum dot (qd), including the coulomb interaction and the sp-d exchange interaction. at low magnetic field, the me energy decreases rapidly with increasing magnetic field and saturates at high magnetic field for high mn concentration. the ground state of the me exhibits an interesting crossing behavior between sigma(+)-me and sigma(-)-me for low mn concentration. the g(ex) factor of the me in a dms qd displays a monotonic decrease with increasing magnetic field and can be tuned to zero by an external magnetic field. (c) 2003 american institute of physics.
学科主题	半导体物理
收录类别	SCI
语种	英语
公开日期	2010-08-12
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/11602]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	Chang K,Xia JB,Peeters FM. Magnetic field tuning of the effective g factor in a diluted magnetic semiconductor quantum dot[J]. applied physics letters,2003,82(16):2661-2663.
APA	Chang K,Xia JB,&Peeters FM.(2003).Magnetic field tuning of the effective g factor in a diluted magnetic semiconductor quantum dot.applied physics letters,82(16),2661-2663.
MLA	Chang K,et al."Magnetic field tuning of the effective g factor in a diluted magnetic semiconductor quantum dot".applied physics letters 82.16(2003):2661-2663.