Tuning Electron Spin States in Quantum Dots by Spin-Orbit Interactions

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	Tuning Electron Spin States in Quantum Dots by Spin-Orbit Interactions
	Liu Y ; Cheng F
刊名	chinese physics letters
	2011
卷号	28 期号:6 页码:article no.67303
关键词	ARTIFICIAL ATOMS RESONANCE MEMORY LAYERS WELLS GATE
ISSN号	0256-307x
通讯作者	liu, y, chinese acad sci, inst semicond, sklsm, pob 912, beijing 100083, peoples r china. yuliu@semi.ac.cn
学科主题	半导体物理
收录类别	SCI
资助信息	national natural science foundation of china [11004017]
语种	英语
公开日期	2011-07-05 ; 2011-07-15
附注	we theoretically investigate the influence of both rashba spin-orbit interaction (rsoi) and dresselhaus spin-orbit interaction (dsoi) on electron spin states, electron distribution and the optical absorption of a quantum dot. our theoretical results show that the interplay between rsoi and dsoi results in an effective periodic potential, which consequently breaks the rotational symmetry and makes the quantum dot behave like two laterally coupled quantum dots. in the presence of rsoi and/or dsoi the spin is no longer a conserved quantity and its magnitude can be tuned by changing the strength of rsoi and/or dsoi. by reversing the direction of the perpendicular electric field, we can rotate the spatial distribution. this property provides us with a new way to control quantum states in a quantum dot by electrical means.
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/20831]
专题	半导体研究所_半导体超晶格国家重点实验室
推荐引用方式 GB/T 7714	Liu Y,Cheng F. Tuning Electron Spin States in Quantum Dots by Spin-Orbit Interactions[J]. chinese physics letters,2011,28(6):article no.67303.
APA	Liu Y,&Cheng F.(2011).Tuning Electron Spin States in Quantum Dots by Spin-Orbit Interactions.chinese physics letters,28(6),article no.67303.
MLA	Liu Y,et al."Tuning Electron Spin States in Quantum Dots by Spin-Orbit Interactions".chinese physics letters 28.6(2011):article no.67303.