Density Induced Interchange of Anisotropy Axes at Half-Filled High Landau Levels

Abstract

We observe density induced 90${}^{\circ }$ rotations of the anisotropy axes in transport measurements at half-filled high Landau levels in the two dimensional electron system, where stripe states are proposed ($\nu$=9/2, 11/2, etc). Using a field effect transistor, we find the transition density to be $2.9\times 10^{11}$cm${}^{-2}$ at $\nu$=9/2. Hysteresis is observed in the vicinity of the transition. We construct a phase boundary in the filling factor-magnetic field plane in the regime $4.4<\nu <4.6$. An in-plane magnetic field applied along either anisotropy axis always stabilizes the low density orientation of the stripes.

1 revtex file, 3 eps figures

References in corpus (3)

• Ground state phase diagram of 2D electrons in a high Landau level: - DMRG study
• An Investigation of Orientational Symmetry-Breaking Mechanisms in High Landau Levels
• Current Path Properties of the Transport Anisotropy at Filling Factor 9/2

Cited by in corpus (28)

• How to detect fluctuating order in the high-temperature superconductors
• Nematic Fermi Fluids in Condensed Matter Physics
• Evidence for an incommensurate magnetic resonance in La(2-x)Sr(x)CuO(4)
• Effect of strain on stripe phases in the Quantum Hall regime
• Metastable Resistance Anisotropy Orientation of Two-Dimensional Electrons in High Landau Levels
• Possible nematic to smectic phase transition in a two-dimensional electron gas at half-filling
• Pinning mode resonances of 2D electron stripe phases: Effect of in-plane magnetic field
• Spontaneous Symmetry Breaking and Exotic Quantum Order in Integer Quantum Hall Systems under a Tilted Magnetic Field
• Heterostructure Symmetry and the Orientation of the Quantum Hall Nematic Phases
• Reorientation of quantum Hall stripes within a partially filled Landau level
• Anisotropic Pseudopotential Characterization of Quantum Hall Systems under Tilted Magnetic Field
• Microscopic theory for nematic fractional quantum Hall effect
• Evidence for a new symmetry breaking mechanism reorienting quantum Hall nematics
• Spin and charge distribution symmetry dependence of stripe phases in two-dimensional electron systems confined to wide quantum wells
• Effect of density on quantum Hall stripe orientation in tilted magnetic fields
• Anomalous Nematic States in High Half-Filled Landau Levels
• Anisotropic transport in unidirectional lateral superlattice around half-filling of the second Landau level
• Observation of An Anisotropic Wigner Crystal
• Impact of the modulation doping layer on the ν=5/2 anisotropy
• New Anisotropic Behavior of Quantum Hall Resistance in (110) GaAs Heterostructures at mK Temperatures and Fractional Filling Factors
• Apparent temperature-induced reorientation of quantum Hall stripes
• Field Theory of Anisotropic Quantum Hall Gas: Metrology and a Novel Quantum Hall Regime
• Hidden Quantum Hall Stripes in Al${}_x$Ga${}_{1-x}$As/Al${}_{0.24}$Ga${}_{0.76}$As Quantum Wells
• Orientation of hole quantum Hall nematic phases in an out-of-plane electric field
• Density-induced reorientation of the stripe at half-filled high Landau levels
• Quantum Hall stripes in high-density GaAs/AlGaAs quantum wells
• Even-denominator fractional quantum Hall states with spontaneously broken rotational symmetry
• Anisotropic conductivity tensor on a half-filled high Landau level