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	Spin states in semiconductor quantum dot with a single magnetic ion
	Li, X. J.; Yang, W.; Chang, Kai; Xia, J. B.
刊名	Physica e-low-dimensional systems & nanostructures
	2008-09-01
卷号	40期号:10页码:3097-3106
关键词	Quantum dot Sp-d exchange interaction Magneto-optical property
ISSN号	1386-9477
DOI	10.1016/j.physe.2008.04.010
通讯作者	Chang, kai(kchang@semi.ac.cn)
英文摘要	We investigate theoretically cdte quantum dots containing a single mn(2+) 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 mn(2+) ion s(z) not equal -5/2 (s(z) = -5/2) decrease (increase) with increasing magnetic fields due to the alignment of the mn(2+) 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.
WOS关键词	POLARONS
WOS研究方向	Science & Technology - Other Topics ; Physics
WOS类目	Nanoscience & Nanotechnology ; Physics, Condensed Matter
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000259715800015
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2427227
专题	半导体研究所
通讯作者	Chang, Kai
作者单位	Chinese Acad Sci, Inst Semicond, SKLSM, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Li, X. J.,Yang, W.,Chang, Kai,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, X. J.,Yang, W.,Chang, Kai,&Xia, J. B..(2008).Spin states in semiconductor quantum dot with a single magnetic ion.Physica e-low-dimensional systems & nanostructures,40(10),3097-3106.
MLA	Li, X. J.,et al."Spin states in semiconductor quantum dot with a single magnetic ion".Physica e-low-dimensional systems & nanostructures 40.10(2008):3097-3106.

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