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arxiv: 1009.5571 · v1 · pith:KZ7BOOPKnew · submitted 2010-09-28 · ❄️ cond-mat.mes-hall · nlin.CD

Weak localization in mesoscopic hole transport: Berry phases and classical correlations

classification ❄️ cond-mat.mes-hall nlin.CD
keywords transportberryclassicalcorrelationsholelocalizationphaseweak
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We consider phase-coherent transport through ballistic and diffusive two-dimensional hole systems based on the Kohn-Luttinger Hamiltonian. We show that intrinsic heavy-hole light-hole coupling gives rise to clear-cut signatures of an associated Berry phase in the weak localization which renders the magneto-conductance profile distinctly different from electron transport. Non-universal classical correlations determine the strength of these Berry phase effects and the effective symmetry class, leading even to antilocalization-type features for circular quantum dots and Aharonov-Bohm rings in the absence of additional spin-orbit interaction. Our semiclassical predictions are quantitatively confirmed by numerical transport calculations.

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