Spin states in semiconductor quantum dot with a single magnetic ion

CORC > 半导体研究所 > 中国科学院半导体研究所 > 中国科学院半导体研究所（2009年前）

	Spin states in semiconductor quantum dot with a single magnetic ion
	Li XJ ; Yang W ; Chang K ; Xia JB
刊名	physica e-low-dimensional systems & nanostructures
	2008
卷号	40 期号:10 页码:3097-3106
关键词	quantum dot
ISSN号	1386-9477
通讯作者	chang, k, chinese acad sci, inst semicond, sklsm, pob 912, beijing 100083, peoples r china. 电子邮箱地址: kchang@semi.ac.cn
中文摘要	we investigate theoretically cdte quantum dots containing a single mn2+ impurity, including the sp-d exchange interaction between carriers and the magnetic ion and the short-range exchange interaction between electron and hole. we find anticrossing behaviors in the energy spectrum of the electron-hole (e-h) pair that arise from the interplay between exchange interactions and the magnetic field. in addition to the s-d exchange interaction, we find that other mechanisms inducing the anticrossings become important in the strong heavy hole-light hole (hh-lh) mixing regime. the transition strengths between the states with spin projection of mn2+ ion s-z not equal -5/2 (s-z = -5/2) decrease (increase) with increasing magnetic fields due to the alignment of the mn2+ spin. the spin splitting of the e-h pair states depends sensitively on the external magnetic and electric field, which reveals useful information about the spin orientation and position of the magnetic ion. meanwhile, the manipulation of the position of the magnetic ion offers us a way to control the spin splitting of the carriers. (c) 2008 elsevier b.v. all rights reserved.
学科主题	半导体物理
收录类别	SCI
资助信息	nsfc 60525405 cas this work is partly supported by the nsfc 60525405 and the innovation project of knowledge frorn cas.
语种	英语
公开日期	2010-03-08
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/6442]
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	Li XJ,Yang W,Chang K,et al. Spin states in semiconductor quantum dot with a single magnetic ion[J]. physica e-low-dimensional systems & nanostructures,2008,40(10):3097-3106.
APA	Li XJ,Yang W,Chang K,&Xia JB.(2008).Spin states in semiconductor quantum dot with a single magnetic ion.physica e-low-dimensional systems & nanostructures,40(10),3097-3106.
MLA	Li XJ,et al."Spin states in semiconductor quantum dot with a single magnetic ion".physica e-low-dimensional systems & nanostructures 40.10(2008):3097-3106.