Conductance of a quantum point contact in the presence of spin-orbit interaction

Details Conductance of a quantum point contact in the presence of spin-orbit interaction Conductance of a quantum point contact in the presence of spin-orbit interaction

2002-08-27

arxiv.org/abs/cond-mat/0208506v1

J. Appl. Phys. 91, 6545 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages

Scientific paper

10.1063/1.1469202

A recursive Green's function technique is developed to calculate the spin-dependent conductance in mesoscopic structures. Using this technique, we study the spin-dependent electronic transport of quantum point contacts in the presence of the Rashba spin-orbit interaction. We observed that some oscillations in the `quantized' conductance are induced by the spin-orbit interaction, and indicated that the oscillations may stem from the spin-orbit coupling associated multiple reflections. It is also indicated that the 0.7 structure of the conductance observed in mesoscopic experiments would not stem from the spin-orbit interaction.

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