0.4 and 0.7 conductance anomalies in quantum point contacts

Self-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 a...

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Veröffentlicht in:	Nanotechnology 2007-05, Vol.18 (18), p.185403-185403 (5), Article 185403
Hauptverfasser:	Bychkov, A M, Stace, T M
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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