Evidence for a Bilayer Quantum Wigner Solid

Abstract

As the electronic charge distribution in a wide quantum well is tuned from a single-layer through an interacting bilayer configuration to weakly-coupled parallel layers, we observe an insulating phase concurrently manifesting a dramatic evolution. The data reveal that interlayer interactions, playing a crucial role, are able to stabilize a {\it correlated bilayer} electron insulator, thus providing tantalizing evidence of a pinned bilayer Wigner solid phase crystallizing at total filling factor $\nu$ as large as 0.54 ($\nu >\frac{1}{4}$ in each layer).

10 pages, REVTeX, submitted to Phys. Rev. Lett.; 4 figures (1 color) and text available for viewing (HTML) or download (Postscript) at http://www.ee.princeton.edu/~hari/

References in corpus (2)

• Wigner Crystals Phases in Bilayer Quantum Hall Systems
• Laughlin liquid - Wigner solid transition at high density in wide quantum wells

Cited by in corpus (60)

• Correlation lengths of Wigner crystal order in two dimensional electron system at high magnetic field
• Fibonacci Anyons From Abelian Bilayer Quantum Hall States
• Dynamical properties of the pinned Wigner crystal
• Phase Diagram of Bilayer Composite Fermion States
• Observation of fractional quantum Hall effect at even-denominator 1/2 and 1/4 fillings in asymmetric wide quantum wells
• Crystallization in the Fractional Quantum Hall Regime Induced by Landau-level Mixing
• Phase Diagrams for the $\nu$ = 1/2 Fractional Quantum Hall Effect in Electron Systems Confined to Symmetric, Wide GaAs Quantum Wells
• Contrasting Energy Scales of the Reentrant Integer Quantum Hall States
• Role of density imbalance in an interacting bilayer hole system
• Spontaneous Interlayer Charge Transfer near the Magnetic Quantum Limit
• Dynamic correlations in symmetric electron-electron and electron-hole bilayers
• Fractional Quantum Hall Effect at $\nu =1/2$ in Hole Systems Confined to GaAs Quantum Wells
• Fractional quantum Hall effect energy gap: role of electron layer thickness
• Wigner crystallization in quantum electron bilayers
• Geometric Resonance of Composite Fermions near Bilayer Quantum Hall States
• Raman signatures of classical and quantum phases in coupled dots: A theoretical prediction
• Vertical Field-Effect Transistor Based on Wavefunction Extension
• Non-Abelian phases in two-component $\nu =2/3$ fractional quantum Hall states: Emergence of Fibonacci anyons
• Ground state of classical bilayer Wigner crystals
• Microwave spectroscopic observation of distinct electron solid phases in wide quantum wells
• Local transport in a disorder-stabilized correlated insulating phase
• $\nu =1/2$ Fractional Quantum Hall Effect in Tilted Magnetic Fields
• Fractional quantum Hall states versus Wigner crystals in wide quantum wells in the half-filled lowest and second Landau levels
• Realization of an Interacting Two-Valley AlAs Bilayer System
• Topological phase transition between composite-fermion and Pfaffian daughter states near ν = 1/2 FQHS
• Mutual Composite Fermion and composite Boson approaches to balanced and imbalanced bilayer quantum Hall system: an electronic analogy of the Helium 4 system
• Shape of the magnetoroton at $\nu =1/3$ and $\nu =7/3$ in real samples
• Microwave spectroscopic studies of the bilayer electron solid states at low Landau filling in a wide quantum well
• Pinning modes and interlayer correlation in high magnetic field bilayer Wigner solids
• Crossover between localized states and pinned Wigner crystal in high-mobility n-GaAs/AlGaAs heterostructures near filling factor $\nu =1$
• Origin of the $\nu =1/2$ fractional quantum Hall effect in wide quantum wells
• Thermopower of Interacting GaAs Bilayer Hole Systems in the Reentrant Insulating Phase near $\nu =1$
• Observation of An Anisotropic Wigner Crystal
• Giant frictional drag in strongly interacting bilayers near filling factor one
• Resistive signature of excitonic coupling in an electron-hole double layer with a middle barrier
• Unequal Layer Densities in Bilayer Wigner Crystal at High Magnetic Field
• Melting of Wigner crystal in high-mobility $n$-GaAs/AlGaAs heterostructures at filling factors $0.18>\nu >0.125$: Acoustic studies
• Quantum Monte Carlo study of the phase diagram of the two-dimensional uniform electron liquid
• Microwave spectroscopic observation of a Wigner solid within the 1/2 fractional quantum Hall effect
• Reentrant nu = 1 quantum Hall state in a two-dimensional hole system
• Charge-density-wave states in double-layer graphene structures in a high magnetic field
• Ground state structure of a bilayer Wigner crystal with repulsive dielectric images
• Pinned Bilayer Wigner Crystals with Pseudospin Magnetism
• Quantum Hall effect in single wide quantum wells
• Probing the p-Ge_{1-x}Si_x/Ge/p-Ge_{1-x}Si_x quantum well by means of the quantum Hall effect
• Valley-tunable, even-denominator fractional quantum Hall state in the lowest Landau level of an anisotropic system
• Developing fractional quantum Hall states at even-denominator fillings 1/6 and 1/8
• Wigner crystal in a two-dimensional electron system in the vicinity of filling factor 1/5: Acoustic studies
• Competing Laughlin state and Wigner crystal in bilayer graphene
• A novel planar back-gate design to control the carrier concentrations in GaAs-based double quantum wells
• Exotic Bilayer Crystals in a Strong Magnetic Field
• Analytic theory of pair distribution functions in symmetric electron-electron and electron-hole bilayers
• Fractional quantum Hall state at $\nu =1/2$ with energy gap up to 6 K, and possible transition from one- to two-component state
• Unusually wide plateau of quantized Hall resistance in a quasi bilayer hole system inside the p-GeSi / Ge / p-GeSi quantum well
• Wigner solids of wide quantum wells near Landau filling $\nu =1$
• Defect liquids in a weakly imbalanced bilayer Wigner Crystal
• Interlayer phase coherence and composite fermions
• Surface Transport and Quantum Hall Effect in Ambipolar Black Phosphorus Double Quantum Wells
• Disorder-induced strong-field strong-localization in 2D systems
• Interlayer-correlated fractional quantum Hall state in a trilayer electron system