Quantum oscillations of spin current through a III-V semiconductor loop

Details Quantum oscillations of spin current through a III-V semiconductor loop Quantum oscillations of spin current through a III-V semiconductor loop

2001-12-13

arxiv.org/abs/cond-mat/0112244v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 1 figure

Scientific paper

10.1103/PhysRevB.66.081311

We have investigated the transport of spin polarization through a classically chaotic semiconductor loop with a strong Rashba spin-orbit interaction. We found that if the escape time of a particle is long enough, the configuration averaged spin conductance oscillates strongly with the geometric spin phase. We predict a sizable rotation of spin polarization along its flowing path across the loop from the injector to the collector. We have also discovered a quantized universal spin relaxation in a 2D reservoir connected to such a semiconductor loop.

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