A M Bychkov and T M Stace 2007 Nanotechnology 18 185403 doi:10.1088/0957-4484/18/18/185403
A M Bychkov1,2 and T M Stace1,3
Show affiliationsSelf-consistent modelling based on local spin-density formalism is employed to calculate the conductance of quantum point contacts at finite temperatures. The total electrostatic potential exhibits spin-dependent splitting, which persists at temperatures up to 0.5 K and gives rise to the anomalies at 0.4 and 0.7 of the conductance quantum (2e2/h) occurring simultaneously in the absence of external magnetic fields.
72.10.-d Theory of electronic transport; scattering mechanisms
Issue 18 (9 May 2007)
Received 29 January 2007, in final form 12 March 2007
Published 5 April 2007
A M Bychkov and T M Stace 2007 Nanotechnology 18 185403
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