Interference of heavy holes in an Aharonov-Bohm ring

Abstract

We study the coherent transport of heavy holes through a one-dimensional ring in the presence of spin-orbit coupling. Spin-orbit interaction of holes, cubic in the in-plane components of momentum, gives rise to an angular momentum dependent spin texture of the eigenstates and influences transport. We analyze the dependence of the resulting differential conductance of the ring on hole polarization of the leads and the signature of the textures in the Aharonov-Bohm oscillations when the ring is in a perpendicular magnetic field. We find that the polarization-resolved conductance reveals whether the dominant spin-orbit coupling is of Dresselhaus or Rashba type, and that the cubic spin-orbit coupling can be distinguished from the conventional linear coupling by observing the four-peak structure in the Aharonov-Bohm oscillations.

12 pages, 11 figures

References in corpus (12)

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• Aharonov-Casher and spin Hall effects in two-dimensional mesoscopic ring structures with strong spin-orbit interaction
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• The Aharonov-Bohm-Casher ring-dot as a flux-tunable resonant tunneling diode
• Tunable Aharonov-Anandan phase in transport through mesoscopic hole rings

Cited by in corpus (6)

• Prediction of large linear-in-k spin splitting for holes in the 2D GaAs/AlAs system
• Light-induced spin polarizations in quantum rings
• Aharonov-Bohm rings with strong spin-orbit interaction: the role of sample-specific properties
• Anomalous Spin-Related Quantum Phase in Mesoscopic Hole Rings
• Valence-band effective-potential evolution for coupled holes
• Current-Conserving Aharonov-Bohm Interferometry with Arbitrary Spin Interactions