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

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Abstract

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.

Available Versions of this Item

• Weak localization in mesoscopic hole transport: Berry phases and classical correlations. (deposited 25 Nov 2010 11:35)
  • Weak localization in mesoscopic hole transport: Berry phases and classical correlations. (deposited 24 Feb 2011 15:50)
    • Weak localization in mesoscopic hole transport: Berry phases and classical correlations. (deposited 15 Apr 2011 16:06) [Currently Displayed]