Electronic structure of self-assembled InAs quantum discs in a magnetic field with varying orientation and two-electron quantum-disc qubits

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	Electronic structure of self-assembled InAs quantum discs in a magnetic field with varying orientation and two-electron quantum-disc qubits
	Dong, QR ; Li, SS ; Niu, ZC ; Feng, SL
刊名	journal of physics-condensed matter
	2005
卷号	17 期号:6 页码:949-955
关键词	DOT SYSTEMS
ISSN号	0953-8984
通讯作者	dong, qr, chinese acad sci, inst semicond, state key lab superlatt & microstruct, pob 912, beijing 100083, peoples r china.
中文摘要	we have studied the electronic structure of vertically assembled quantum discs in a magnetic field with varying orientation using the effective mass approximation. we calculate the four energy levels of single-electron quantum discs and the two lowest energy levels of two-electron quantum discs in a magnetic field with varying orientation. the change of the magnetic field as an effective potential strongly modifies the electronic structure, leading to splittings of the levels and anticrossings between the levels. the calculated results also demonstrate the switching between the ground states with the total spin s = 0 and 1. the switching induces a qubit controlled by varying the orientation of the magnetic field.
学科主题	半导体物理
收录类别	SCI
语种	英语
公开日期	2010-03-17
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/8850]
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	Dong, QR,Li, SS,Niu, ZC,et al. Electronic structure of self-assembled InAs quantum discs in a magnetic field with varying orientation and two-electron quantum-disc qubits[J]. journal of physics-condensed matter,2005,17(6):949-955.
APA	Dong, QR,Li, SS,Niu, ZC,&Feng, SL.(2005).Electronic structure of self-assembled InAs quantum discs in a magnetic field with varying orientation and two-electron quantum-disc qubits.journal of physics-condensed matter,17(6),949-955.
MLA	Dong, QR,et al."Electronic structure of self-assembled InAs quantum discs in a magnetic field with varying orientation and two-electron quantum-disc qubits".journal of physics-condensed matter 17.6(2005):949-955.