Shape-dependence of magnetotransport through quantum dots

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	Shape-dependence of magnetotransport through quantum dots
	Sheng WD
刊名	zeitschrift fur physik b-condensed matter
	1997
卷号	104 期号:1 页码:131-135
关键词	MAGNETIC-FIELDS ELECTRON-TRANSPORT POINT CONTACTS TRANSMISSION FLUCTUATIONS CONDUCTANCE WIRES QUANTIZATION RESISTANCE CHANNEL
ISSN号	0722-3277
通讯作者	sheng wd ccastworld labpob 8730beijing 100080peoples r china.
中文摘要	magnetotransport through quantum dot structures is investigated numerically via a scattering matrix technique. the results for two typical structures show that the magnetoconductance is strongly dependent on the quantum dot geometry. for the symmetric quantum dot structure, it is found that the magnetoconductance profiles exhibit irregular structures and the magnetic field plays a similar role to that of disorder in the electron transport. for the t-shaped quantum dot structure, the oscillations in the conductance are found to be completely suppressed and the quantized conductance plateaus are recovered in a strong magnetic field, which is attributed to the asymmetry of the structure geometry with respect to the right-and left-moving edge states.
学科主题	半导体物理
收录类别	SCI
语种	英语
公开日期	2010-11-17
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/15163]
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	Sheng WD. Shape-dependence of magnetotransport through quantum dots[J]. zeitschrift fur physik b-condensed matter,1997,104(1):131-135.
APA	Sheng WD.(1997).Shape-dependence of magnetotransport through quantum dots.zeitschrift fur physik b-condensed matter,104(1),131-135.
MLA	Sheng WD."Shape-dependence of magnetotransport through quantum dots".zeitschrift fur physik b-condensed matter 104.1(1997):131-135.