Evidence for a $\nu =5/2$ Fractional Quantum Hall Nematic State in Parallel Magnetic Fields

Abstract

We report magneto-transport measurements for the fractional quantum Hall state at filling factor $\nu =$ 5/2 as a function of applied parallel magnetic field ($B_{||}$). As $B_{||}$ is increased, the 5/2 state becomes increasingly anisotropic, with the in-plane resistance along the direction of $B_{||}$ becoming more than 30 times larger than in the perpendicular direction. Remarkably, the resistance anisotropy ratio remains constant over a relatively large temperature range, yielding an energy gap which is the same for both directions. Our data are qualitatively consistent with a fractional quantum Hall \textit{nematic} phase.

References in corpus (10)

• Non-Abelian Anyons and Topological Quantum Computation
• Experimental studies of the fractional quantum Hall effect in the first excited Landau level
• Fractional Quantum Hall Effect in the Second Landau Level
• Band mass anisotropy and the intrinsic metric of fractional quantum Hall systems
• Intrinsic Gap of the nu=5/2 Fractional Quantum Hall State
• Tilt-Induced Anisotropic to Isotropic Phase Transition at $\nu =5/2$
• Contrasting Behavior of the 5/2 and 7/3 Fractional Quantum Hall Effect in a Tilted Field
• Fractional quantum Hall states in two-dimensional electron systems with anisotropic interactions
• Composite Fermions with Tunable Fermi Contour Anisotropy
• Role of exciton screening in the 7/3 fractional quantum Hall effect

Cited by in corpus (44)

• Observation of a transition from a topologically ordered to a spontaneously broken symmetry phase
• The Phase Diagram of the $\nu =5/2$ Fractional Quantum Hall Effect: Effects of Landau Level Mixing and Non-Zero Width
• Recent Experimental Progress of Fractional Quantum Hall Effect: 5/2 Filling State and Graphene
• Competing states for the fractional quantum Hall effect in the 1/3-filled second Landau level
• Investigating anisotropic quantum Hall states with bi-metric geometry
• A cascade of phase transitions in an orbitally mixed half-filled Landau level
• Evidence of a fractional quantum Hall nematic phase in a microscopic model
• Fermi Contour Anisotropy of GaAs Electron-Flux Composite Fermions in Parallel Magnetic Fields
• Anisotropic, two-dimensional, disordered Wigner solid
• Exact results for model wave functions of anisotropic composite fermions in the fractional quantum Hall effect
• Transference of Fermi Contour Anisotropy to Composite Fermions
• Pomeranchuk Instability of Composite Fermi Liquids
• Unconventional anisotropic even-denominator fractional quantum Hall state in a system with mass anisotropy
• Numerical study of anisotropy in a composite Fermi liquid
• Reorientation of quantum Hall stripes within a partially filled Landau level
• Anisotropy Driven Transition from Moore-Read State to Quantum Hall Stripes
• Microscopic theory for nematic fractional quantum Hall effect
• Effects of Interaction in the Hofstadter regime of the honeycomb lattice
• Bilayer mapping of the paired quantum Hall state: Instability toward anisotropic pairing
• Onset of Quantum Criticality in the Topological-to-Nematic Transition in a Two-dimensional Electron Gas at Filling Factor $\nu =5/2$
• Strong Transport Anisotropy in a Ge/SiGe Quantum Well in Tilted Magnetic Fields
• Pair-Density-Wave Order and Paired Fractional Quantum Hall Fluids
• Effect of density on quantum Hall stripe orientation in tilted magnetic fields
• Reorientation of the stripe Phase of 2D Electrons by a Minute Density Modulation
• Anomalous Nematic States in High Half-Filled Landau Levels
• Gapped Excitations of unconventional FQHE states in the Second Landau Level
• Optical emission spectroscopy study of competing phases of electrons in the second Landau level
• Density Matrix Renormalization Group Study of Nematicity in Two Dimensions: Application to a Spin-$1$ Bilinear-Biquadratic Model on the Square Lattice
• Paired states in half-filled Landau levels
• Nematic fluctuations balancing the zoo of phases in half-filled quantum Hall systems
• Anisotropic composite fermions and fractional quantum Hall effect
• Valley Stoner Instability of the Composite Fermi Sea
• Competition of Pairing and Nematicity in the Two-Dimensional Electron Gas
• Microscopic Diagnosis of Universal Geometric Responses in Fractional Quantum Hall Liquids
• 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
• Pairing instabilities of Dirac composite fermions
• Possible continuous transition from fractional quantum Hall to stripe phase at ${\nu }_e=7/3$
• Collective excitations of quantum Hall states under tilted magnetic field
• Anomalous nematic-to-stripe phase transition driven by in-plane magnetic fields
• $2{\mathbf{k}}_{\mathbf{F}}$ Density Wave Instability of Composite Fermi Liquid
• Nonlinear transport of Wigner solid phase surrounding the two-flux composite fermion liquid
• Even-denominator fractional quantum Hall states with spontaneously broken rotational symmetry
• Observation of new plasmons in the fractional quantum Hall effect: interplay of topological and nematic orders