Weak localization in mesoscopic hole transport: Berry phases and classical correlations
Krueckl, Viktor and Wimmer, Michael and Adagideli, İnanç and Kuipers, Jack and Richter, Klaus (2011) Weak localization in mesoscopic hole transport: Berry phases and classical correlations. Physical Review Letters, 106 (14). ISSN 0031-9007
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.106.146801
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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