Magnetotransport patterns of collective localization near $\nu =1$ in a high-mobility two-dimensional electron gas

Abstract

We report complex magnetotransport patterns of the $\nu =1$ integer quantum Hall state in a GaAs/AlGaAs sample from the newest generation with a record high electron mobility. The reentrant integer quantum Hall effect in the flanks of the $\nu =1$ plateau indicates the formation of the integer quantum Hall Wigner solid, a collective insulator. Moreover, at a fixed filling factor, the longitudinal resistance versus temperature in the region of the integer quantum Hall Wigner solid exhibits a sharp peak. Such sharp peaks in the longitudinal resistance versus temperature so far were only detected for bubble phases forming in high Landau levels but were absent in the region of the Anderson insulator. We suggest that in samples of sufficiently low disorder sharp peaks in the longitudinal resistance versus temperature traces are universal transport signatures of all isotropic electron solids that form in the flanks of integer quantum Hall plateaus. We discuss possible origins of these sharp resistance peaks and we draw a stability diagram for the insulating phases in the $\nu$-$T$ phase space.

References in corpus (39)

• Evidence for an Anisotropic State of Two-Dimensional Electrons in High Landau Levels
• Charge Density Wave in Two-Dimensional Electron Liquid in Weak Magnetic Field
• Strongly Anisotropic Transport in Higher Two-Dimensional Landau Levels
• The Ground State of a Two-Dimensional Electron Liquid in a Weak Magnetic Field
• Exact results for interacting electrons in high Landau levels
• Insulating and Fractional Quantum Hall States in the N=1 Landau Level
• Ultra-high quality two-dimensional electron systems
• Giant Low Temperature Heat Capacity of GaAs Quantum Wells near Landau Level Filling $\nu$=1
• New insulating phases of two-dimensional electrons in high Landau levels: observation of sharp thresholds to conduction
• Spontaneous Breakdown of Translational Symmetry in Quantum Hall Systems: Crystalline Order in High Landau Levels
• Microwave Resonance of 2D Wigner Crystal around integer Landau fillings
• The Onset of Anisotropic Transport of Two-Dimensional Electrons in High Landau Levels: An Isotropic-to-Nematic Liquid Crystal Phase Transition?
• Sharp Tunneling Resonance from the Vibrations of an Electronic Wigner Crystal
• Evidence for Skyrmion crystallization from NMR relaxation experiments
• Skyrmion solids in monolayer graphene
• NMR profiling of quantum electron solids in high magnetic fields
• Evidence for the Collective Nature of the Reentrant Integer Quantum Hall States of the Second Landau Level
• Integrated Electronic Transport and Thermometry at milliKelvin Temperatures and in Strong Magnetic Fields
• Evidence of a first order phase transition between Wigner crystal and Bubble Phases of 2D electrons in higher Landau levels
• Competing Fractional Quantum Hall and Electron Solid Phases in Graphene
• $nu=5/2$ Fractional Quantum Hall State in Low-Mobility Electron Systems: Different Roles of Disorder
• Contrasting Energy Scales of the Reentrant Integer Quantum Hall States
• Laughlin liquid - Wigner solid transition at high density in wide quantum wells
• Observation of reentrant quantum Hall states in the lowest Landau level
• Wigner crystalization about $\nu$=3
• Electron-Electron Interactions and the Paired-to-Nematic Quantum Phase Transition in the Second Landau Level
• New Physics in High Landau Levels
• Pinning mode resonance of a Skyrme crystal near Landau level filling factor $\nu$=1
• De-Pinning Transition of Bubble Phases in a High Landau Level
• Competing charge density waves probed by non-linear transport and noise in the second and third Landau levels
• Microwave spectroscopic observation of distinct electron solid phases in wide quantum wells
• Two- and three-electron bubbles in Al${}_x$Ga${}_{1-x}$As/Al${}_{0.24}$Ga${}_{0.76}$As quantum wells
• Electron Bubbles and the Structure of the Orbital Wavefunction
• Crossover between localized states and pinned Wigner crystal in high-mobility n-GaAs/AlGaAs heterostructures near filling factor $\nu =1$
• Spin and charge distribution symmetry dependence of stripe phases in two-dimensional electron systems confined to wide quantum wells
• Dispersive line shape in the vicinity of the ν = 1 quantum Hall state: Coexistence of Knight shifted and unshifted resistively detected NMR responses
• Competition of Pairing and Nematicity in the Two-Dimensional Electron Gas
• Stability of multielectron bubbles in high Landau levels
• Wigner solids of wide quantum wells near Landau filling $\nu =1$

Cited by in corpus (8)

• A Highly Correlated Topological Bubble Phase of Composite Fermions
• Integer Quantum Hall Effect: Disorder, temperature, floating, and plateau width
• Capacitive Response of Wigner Crystals at the Quantum Hall Plateau
• Thermal Activation Signatures of the Anderson Insulator and the Wigner Solid forming near $\nu =1$
• Density Dependence of the Phases of the $\nu =1$ Integer Quantum Hall Plateau in Low Disorder Electron Gases
• Evidence for Topological Protection Derived from Six-Flux Composite Fermions
• Interaction-driven quantum phase transitions between topological and crystalline orders of electrons
• Inequivalence of the low-density insulating state and quantum Hall insulating states in a strongly correlated two-dimensional electron system