Influence of transverse interdot coupling on transport properties of an Aharonov-Bohm structure composed by two dots and two reservoirs

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	Influence of transverse interdot coupling on transport properties of an Aharonov-Bohm structure composed by two dots and two reservoirs
	Jiang ZT ; You JQ ; Bian SB ; Zheng HZ
刊名	physical review b
	2002
卷号	66 期号:20 页码:art.no.205306
关键词	DOUBLE-QUANTUM-DOT ARTIFICIAL MOLECULE RATE-EQUATIONS RING INTERFERENCE SPECTROSCOPY OSCILLATIONS CONDUCTANCE INTRADOT
ISSN号	1098-0121
通讯作者	jiang zt,chinese acad sci,inst semicond,natl lab superlattices & microstruct,pob 912,beijing 100083,peoples r china.
中文摘要	we derive the modified rate equations for an aharonov-bohm (ab) ring with two transversely coupled quantum dots (qd's) embedded in two arms in the presence of a magnetic field. we find that the interdot coupling between the two qd's can cause a temporal oscillation in electron occupation at the initial stage of the quantum dynamics, while the source-drain current decays monotonically to a stationary value. on the other hand, the interdot coupling equivalently divides the ab ring into two coupled subrings. that also destroys the normal ab oscillations with a period of 2pi, and generates new and complex periodic oscillations with their periods varying in a linear manner as the ratio between two magnetic fluxes (each penetrates one ab subring) increases. furthermore, the interference between two subrings is also evident from the observation of the perturbed fundamental ab oscillation.
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/172111/11700]
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	Jiang ZT,You JQ,Bian SB,et al. Influence of transverse interdot coupling on transport properties of an Aharonov-Bohm structure composed by two dots and two reservoirs[J]. physical review b,2002,66(20):art.no.205306.
APA	Jiang ZT,You JQ,Bian SB,&Zheng HZ.(2002).Influence of transverse interdot coupling on transport properties of an Aharonov-Bohm structure composed by two dots and two reservoirs.physical review b,66(20),art.no.205306.
MLA	Jiang ZT,et al."Influence of transverse interdot coupling on transport properties of an Aharonov-Bohm structure composed by two dots and two reservoirs".physical review b 66.20(2002):art.no.205306.