Spin accumulation from the non-Abelian Aharonov-Bohm effect

Details Spin accumulation from the non-Abelian Aharonov-Bohm effect Spin accumulation from the non-Abelian Aharonov-Bohm effect

2007-04-06

arxiv.org/abs/0704.0830v1

Phys. Rev. B 76, 233409 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.76.233409

Recently, it has been shown that the spin-orbit coupling (SOC) of the Dresselhaus type in $[110]$ quantum wells can be mathematically removed by a non-Abelian gauge transformation. In the presence of an additional uniform magnetic field, such a non-Abelian gauge flux leads to a spin accumulation at the edges of the sample, where the relative sign of the spin accumulation between the edges can be tuned by the sign of the Dresselhaus SOC constant. Our prediction can be tested by Kerr measurements within the available experimental sensitivities.

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