Impact of spin-orbit coupling on quantum Hall nematic phases

Abstract

Anisotropic charge transport is observed in a two-dimensional (2D) hole system in a perpendicular magnetic field at filling factors nu=7/2, nu=11/2, and nu=13/2 at low temperature. In stark contrast, the transport at nu=9/2 is isotropic for all temperatures. Isotropic hole transport at nu=7/2 is restored for sufficiently low 2D densities or an asymmetric confining potential. The density and symmetry dependences of the observed anisotropies suggest that strong spin-orbit coupling in the hole system contributes to the unusual transport behavior.

4 pages, 4 figures

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Cited by in corpus (22)

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• Evidence for a fractional quantum Hall state with anisotropic longitudinal transport
• Paired composite fermion wavefunctions
• Observation of a transition from a topologically ordered to a spontaneously broken symmetry phase
• Recent Experimental Progress of Fractional Quantum Hall Effect: 5/2 Filling State and Graphene
• Effect of strain on stripe phases in the Quantum Hall regime
• Quantitative Analysis of the Disorder Broadening and the Intrinsic Gap for the $\nu =5/2$ Fractional Quantum Hall State
• Heterostructure Symmetry and the Orientation of the Quantum Hall Nematic Phases
• Unconventional anisotropic even-denominator fractional quantum Hall state in a system with mass anisotropy
• Record-quality GaAs two-dimensional hole systems
• Exploration of the Limits to Mobility in Two-Dimensional Hole Systems in GaAs/AlGaAs Quantum Wells
• Scattering Mechanisms in a High Mobility Low Density Carbon-Doped (100) GaAs Two-Dimensional Hole System
• Particle-hole Asymmetry of Fractional Quantum Hall States in the Second Landau Level of a Two-dimensional Hole System
• Highly-Anisotropic Even-Denominator Fractional Quantum Hall State in an Orbitally-Coupled Half-Filled Landau Level
• Morphing of 2D Hole Systems at $\nu =3/2$ in Parallel Magnetic Fields: Compressible, Stripe, and Fractional Quantum Hall Phases
• Anomalous coupling between magnetic and nematic orders in quantum Hall systems
• Tuning the effects of Landau-level mixing on anisotropic transport in quantum Hall systems
• Orientation of hole quantum Hall nematic phases in an out-of-plane electric field
• Composite Fermion States around 2D Hole Landau Level Filling Factor 3/2 in Tilted Magnetic Fields
• Even-denominator fractional quantum Hall states with spontaneously broken rotational symmetry
• Interfacial Line Energy of a Topological Phase
• Competing quantum Hall phases in the second Landau level in low density limit