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arXiv · 0803.0774

Tunable Aharonov-Anandan phase in transport through mesoscopic hole rings

M. Pletyukhov·U. Zuelicke
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Abstract

We present a theoretical study of spin-3/2 hole transport through mesoscopic rings, based on the spherical Luttinger model. The quasi-one-dimensional ring is created in a symmetric two-dimensional quantum well by a singular-oscillator potential for the radial in-plane coordinate. The quantum-interference contribution to the two-terminal ring conductance exhibits an energy-dependent Aharonov-Anandan phase, even though Rashba and Dresselhaus spin splittings are absent. Instead, confinement-induced heavy-hole - light-hole mixing is found to be the origin of this phase, which has ramifications for magneto-transport measurements in gated hole rings.

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M. Pletyukhov, U. Zuelicke. 2008-04-18. Tunable Aharonov-Anandan phase in transport through mesoscopic hole rings. https://doi.org/10.1103/physrevb.77.193304

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