Anomalous Nematic States in High Half-Filled Landau Levels

Abstract

It is well established that the ground states of a two-dimensional electron gas with half-filled high ($N\ge 2$) Landau levels are compressible charge-ordered states, known as quantum Hall stripe (QHS) phases. The generic features of QHSs are a maximum (minimum) in a longitudinal resistance $R_{xx}$ ($R_{yy}$) and a non-quantized Hall resistance $R_H$. Here, we report on emergent minima (maxima) in $R_{xx}$ ($R_{yy}$) and plateau-like features in $R_H$ in half-filled $N\ge 3$ Landau levels. Remarkably, these unexpected features develop at temperatures considerably lower than the onset temperature of QHSs, suggesting a new ground state.

5 pages, 5 figures

References in corpus (4)

• Possible nematic to smectic phase transition in a two-dimensional electron gas at half-filling
• Low-temperature illumination and annealing of ultra-high quality quantum wells
• Two- and three-electron bubbles in Al${}_x$Ga${}_{1-x}$As/Al${}_{0.24}$Ga${}_{0.76}$As quantum wells
• Effect of illumination on quantum lifetime in GaAs quantum wells

Cited by in corpus (11)

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• From Fractional Quantum Anomalous Hall Smectics to Polar Smectic Metals: Nontrivial Interplay Between Electronic Liquid Crystal Order and Topological Order in Correlated Topological Flat Bands
• The relativistic dynamics of oppositely charged two fermions interacting with external uniform magnetic field
• Highly-Anisotropic Even-Denominator Fractional Quantum Hall State in an Orbitally-Coupled Half-Filled Landau Level
• Hidden Quantum Hall Stripes in Al${}_x$Ga${}_{1-x}$As/Al${}_{0.24}$Ga${}_{0.76}$As Quantum Wells
• Discovery of an Intermediate Nematic State in a Bilayer Kagome Metal ScV6Sn6
• Negative longitudinal resistance of monolayer graphene in the quantum Hall regime
• Driven Superconducting Vortex Dynamics in Systems with Two-Fold Anisotropy in the Presence of Pinning
• Anomalous nematic-to-stripe phase transition driven by in-plane magnetic fields
• Even-denominator fractional quantum Hall states with spontaneously broken rotational symmetry