The effect of a non-uniform scattering potential on conductance fluctuations in a quantum wire

DW Horsell; EA Galaktionov; AK Savchenko; AV Kretinin; A Ghosh; HE Beere; DA Ritchie

doi:10.1002/pssc.200562747

The effect of a non-uniform scattering potential on conductance fluctuations in a quantum wire

DW Horsell
, EA Galaktionov
, AK Savchenko
, AV Kretinin
, A Ghosh
, HE Beere
, DA Ritchie

Research output: Contribution to journal › Article › peer-review

Abstract

We investigate experimentally the fluctuations of the conductance of a high mobility quantum wire. We show that scattering of electrons is not evenly distributed across the wire. In the centre of the wire electrons propagate almost ballistically. However, when the electrons are forced into the boundaries of the wire diffusive scattering occurs. This is seen as a dramatic enhancement of the variance and characteristic period of the fluctuations at the field at which maximum boundary scattering is predicted. We compare our results with recent theories and construct an empirical model to describe the transport processes in the wire. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Original language	English
Pages (from-to)	325-328
Number of pages	4
Journal	Physica Status Solidi. C: Current Topics in Solid State Physics
Volume	3
DOIs	https://doi.org/10.1002/pssc.200562747
Publication status	Published - 30 Jan 2006

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abstract = "We investigate experimentally the fluctuations of the conductance of a high mobility quantum wire. We show that scattering of electrons is not evenly distributed across the wire. In the centre of the wire electrons propagate almost ballistically. However, when the electrons are forced into the boundaries of the wire diffusive scattering occurs. This is seen as a dramatic enhancement of the variance and characteristic period of the fluctuations at the field at which maximum boundary scattering is predicted. We compare our results with recent theories and construct an empirical model to describe the transport processes in the wire. ({\textcopyright} 2006 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim)",

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AU - Horsell, DW

AU - Galaktionov, EA

AU - Savchenko, AK

AU - Kretinin, AV

AU - Ghosh, A

AU - Beere, HE

AU - Ritchie, DA

PY - 2006/1/30

Y1 - 2006/1/30

N2 - We investigate experimentally the fluctuations of the conductance of a high mobility quantum wire. We show that scattering of electrons is not evenly distributed across the wire. In the centre of the wire electrons propagate almost ballistically. However, when the electrons are forced into the boundaries of the wire diffusive scattering occurs. This is seen as a dramatic enhancement of the variance and characteristic period of the fluctuations at the field at which maximum boundary scattering is predicted. We compare our results with recent theories and construct an empirical model to describe the transport processes in the wire. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

AB - We investigate experimentally the fluctuations of the conductance of a high mobility quantum wire. We show that scattering of electrons is not evenly distributed across the wire. In the centre of the wire electrons propagate almost ballistically. However, when the electrons are forced into the boundaries of the wire diffusive scattering occurs. This is seen as a dramatic enhancement of the variance and characteristic period of the fluctuations at the field at which maximum boundary scattering is predicted. We compare our results with recent theories and construct an empirical model to describe the transport processes in the wire. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000236764000019&KeyUID=WOS:000236764000019

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JO - Physica Status Solidi. C: Current Topics in Solid State Physics

JF - Physica Status Solidi. C: Current Topics in Solid State Physics

ER -

The effect of a non-uniform scattering potential on conductance fluctuations in a quantum wire

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