Phase Transition in ν=2 Bilayer Quantum Hall State

Abstract

The Hall-plateau width and the activation energy were measured in the bilayer quantum Hall state at filling factor ν=2, 1 and 2/3, by changing the total electron density and the density ratio in the two quantum wells. Their behavior are remarkably different from one to another. The ν=1 state is found stable over all measured range of the density difference, while the ν=2/3$ state is stable only around the balanced point. The ν=2 state, on the other hand, shows a phase transition between these two types of the states as the electron density is changed.

5 pages including figures, RevTeX

References in corpus (3)

• Spontaneous Inter-layer Coherence in Double-Layer Quantum-Hall Systems I: Charged Vortices and Kosterlitz-Thouless Phase Transitions
• Quantum Ferromagnetism and Phase Transitions in Double-Layer Quantum Hall Systems
• Anomalous Stability of nu=1 Bilayer Quantum Hall State

Cited by in corpus (52)

• Evidence for a Goldstone Mode in a Double Layer Quantum Hall System
• First-Order Phase Transition in a Quantum Hall Ferromagnet
• Pseudospin Anisotropy Classification of Quantum Hall Ferromagnets
• Quantum Hall Ferromagnetism in a Two-Dimensional Electron System
• Broken Symmetry Ground States in ν=2 Bilayer Quantum Hall Systems
• Onset of Interlayer Phase Coherence in a Bilayer Two-Dimensional Electron System: Effect of Layer Density Imbalance
• Canted antiferromagnetic phase in a double quantum well in a tilted quantizing magnetic field
• Spin-Polarized to Valley-Polarized Transition in Graphene Bilayers at $\nu =0$ in High Magnetic Fields
• Electromodulation of the bilayer $\nu$=2 quantum Hall phase diagram
• Vortices, tunneling and deconfinement in bilayer excitonic quantum Hall superfluid
• NMR Evidence for Spin Canting in a Bilayer nu = 2 Quantum Hall System
• Role of density imbalance in an interacting bilayer hole system
• Bilayer Quantum Hall Systems at Filling Factor ν=2: An Exact Diagonalisation Study
• Charge Imbalance and Bilayer 2D Electron Systems at ${\nu }_T=1$
• Bias-voltage induced phase-transition in bilayer quantum Hall ferromagnets
• Entanglement Thermodynamics
• Spin-Pseudospin Coherence and CP${}^3$ Skyrmions in Bilayer Quantum Hall Ferromagnets
• Multiple Phases with the Same Quantized Hall Conductance in a Two-Subband System
• Fractional quantum Hall effects in bilayers in the presence of inter-layer tunneling and charge imbalance
• Interlayer Coherence in the $\nu =1$ and $\nu =2$ Bilayer Quantum Hall States
• Universal critical temperature for Kosterlitz-Thouless transitions in bilayer quantum magnets
• Hybridization of electron subbands in a double quantum well at quantizing magnetic field
• Interlayer Exchange Interactions, SU(4) Soft Waves and Skyrmions in Bilayer Quantum Hall Ferromagnets
• Spontaneous Symmetry Breaking and Exotic Quantum Order in Integer Quantum Hall Systems under a Tilted Magnetic Field
• Spin effects in the magneto-drag between double quantum wells
• Ground-State Structure in $\nu =2$ Bilayer Quantum Hall Systems
• Canted ground state in artificial molecules at high magnetic fields
• Magnetotransport Study of the Canted Antiferromagnetic Phase in Bilayer $\nu =2$ Quantum Hall State
• Evolution of the bilayer nu = 1 quantum Hall state under charge imbalance
• Magnetoplasmon Excitations and Spin Density Instabilities in an Integer Quantum Hall System with a Tilted Magnetic Field
• Quantum phase transitions in antiferromagnets and superfluids
• Simultaneous Excitation of Spins and Pseudospins in the Bilayer $\nu =1$ Quantum Hall State
• Grassmannian Fields and Doubly Enhanced Skyrmions in Bilayer Quantum Hall system at $\nu =2$
• Doubly Enhanced Skyrmions in $\nu =2$ Bilayer Quantum Hall States
• Topological defects in the edge state structure in a bilayer electron system
• Spin-isospin textured excitations in a double layer at filling factor $\nu =2$
• Canted phase in double quantum dots
• Spin mapping, phase diagram, and collective modes in double layer quantum Hall systems at $\nu =2$
• $\nu =2$ Bilayer Quantum Hall System in Tilted Magnetic Field
• Excitation spectrum of Bilayer $\nu =2$ Quantum Hall Systems
• Improved Composite-Boson Theory of Monolayer and Bilayer Quantum Hall Ferromagnets
• Disordered electron liquid in double quantum well heterostructures: Renormalization group analysis and dephasing rate
• The Study of Goldstone Modes in $\nu$=2 Bilayer Quantum Hall Systems
• Effect of in-plane magnetic field on magnetic phase transitions in nu=2 bilayer quantum Hall systems
• Finite-temperature phase transitions in $\nu =2$ bilayer quantum Hall systems
• Skyrmion $\leftrightarrow$ pseudoSkyrmion Transition in Bilayer Quantum Hall States at $\nu =1$
• Manifestation of the bulk phase transition in the edge energy spectrum in a two dimensional bilayer electron system
• PseudoSkyrmion Effects on Tunneling Conductivity in Coherent Bilayer Quantum Hall States at $\nu =1$
• Large Zeeman Splitting in Out-of-Plane Magnetic Field in a Double-Layer Quantum Point Contact
• Density dependence of the excitation gaps in an undoped Si/SiGe double-quantum-well heterostructure
• Bilayer Quantum Hall States in an n-type Wide Tellurium Quantum Well
• SU(4) Coherent Effects to the Canted Antiferromagnetic Phase in Bilayer Quantum Hall Systems at $\nu$=2