V V Larkin et al 2002 Nanotechnology 13 487 doi:10.1088/0957-4484/13/4/309
Conductance anomalies in gated V-groove quantum wires
V V Larkin1, S V Morozov2, D Yu Ivanov2, I A Larkin3,2, P A Houston1, G Hill1, J S Roberts1, Yu V Dubrovskii2 and J H Jefferson4
Show affiliationsWe present transconductance measurements on gated V-groove GaAs/AlGaAs quantum wire heterostructures grown by metal-organic chemical vapour deposition. The results show anomalously large negative magnetoresistance for a magnetic field perpendicular to the current, and oscillations in conductance with the field oriented along the width of the wire. Clear steps in conductance versus gate voltage are also observed and these are consistent with the charging of a nearby `droplet' with each step corresponding to a change in the occupation of a single electron.
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Issue 4 (August 2002)
Received 11 July 2001, in final form 28 May 2002
Published 21 June 2002
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Conductance anomalies in gated V-groove quantum wires
V V Larkin et al 2002 Nanotechnology 13 487
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