Two-terminal conductance fluctuations in the integer quantum Hall regime

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Title:	Two-terminal conductance fluctuations in the integer quantum Hall regime
Authors:	Ho, Chang-ming
Contributors:	淡江大學物理學系
Date:	1999-07
Issue Date:	2013-07-09 15:21:24 (UTC+8)
Publisher:	College Park: American Physical Society
Abstract:	Motivated by recent experiments on the conductance fluctuations in mesoscopic integr quantum Hall systems, we consider a model in which the Coulomb interactions are incorporated into the picture of edge-state transport through a single saddle-point. The occupancies of `classical' localised states in the two-dimensional electron system change due to the interactions between electrons when the gate voltage on top of the device is varied. The electrostatic potential between the localised states and the saddle-point causes fluctuations of the saddle-point potential and thus fluctuations of the transmission probability of edge states. This simple model is studied numerically and compared with the observation.
Relation:	Physical Review B (Condensed Matter and Materials Physics) 60(12), pp.8839-8844
DOI:	10.1103/PhysRevB.60.8839
Appears in Collections:	[Graduate Institute & Department of Physics] Journal Article

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