Zeeman splitting in ballistic hole quantum wires

Abstract

We have studied the Zeeman splitting in ballistic hole quantum wires formed in a (311)A quantum well by surface gate confinement. Transport measurements clearly show lifting of the spin degeneracy and crossings of the subbands when an in-plane magnetic field B is applied parallel to the wire. When B is oriented perpendicular to the wire, no spin-splitting is discernible up to B = 8.8 T. The observed large Zeeman splitting anisotropy in our hole quantum wires demonstrates the importance of quantum-confinement for spin-splitting in nanostructures with strong spin-orbit coupling.

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• Interaction Effects in a One-Dimensional Constriction
• Highly anisotropic g-factor of two-dimensional hole systems
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Cited by in corpus (40)

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• Ballistic one-dimensional holes with strong g-factor anisotropy in germanium
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• Large variations in the hole spin splitting of quantum-wire subband edges
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• Electrical operation of planar Ge hole spin qubits in an in-plane magnetic field
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• Enhanced Zeeman splitting in Ga0.25In0.75As quantum point contacts
• Characterization of spin-orbit interactions of GaAs heavy holes using a quantum point contact
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• Using a tunable quantum wire to measure the large out-of-plane spin splitting of quasi two-dimensional holes in a GaAs nanostructure
• Interplay between one-dimensional confinement and crystallographic anisotropy in ballistic hole quantum wires
• Anisotropic Fermi Contour of (001) GaAs Holes in Parallel Magnetic Fields
• Electrical control of the sign of the g-factor in a GaAs hole quantum point contact
• Lande-like formula for the g factors of hole-nanowire subband edges
• Origins of conductance anomalies in a p-type GaAs quantum point contact
• Electrical operation of hole spin qubits in planar MOS silicon quantum dots
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• Tailoring hole spin splitting and polarization in nanowires
• g-Factor anisotropy of hole quantum wires induced by the Rashba interaction
• Vanishing Zeeman energy in a two-dimensional hole gas
• Transconductance and effective Landé factors for quantum point contacts: spin-orbit coupling and interaction effects
• Asymmetric $g$ tensor in low-symmetry two-dimensional hole systems
• Band-mixing-mediated Andreev reflection of semiconductor holes
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• Tracking the energies of one-dimensional subband edges in quantum point contacts using dc conductance measurements
• Hole spin splitting in a Ge quantum dot with finite barriers
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