Area dependence of interlayer tunneling in strongly correlated bilayer 2D electron systems at ${\nu }_T=1$

Abstract

The area and perimeter dependence of the Josephson-like interlayer tunneling signature of the coherent ${\nu }_T=1$ quantum Hall phase in bilayer two-dimensional electron systems is examined. Electrostatic top gates of various sizes and shapes are used to locally define distinct ${\nu }_T=1$ regions in the same sample. Near the phase boundary with the incoherent ${\nu }_T=1$ state at large layer separation, our results demonstrate that the tunneling conductance in the coherent phase is closely proportional to the total area of the tunneling region. This implies that tunneling at ${\nu }_T=1$ is a bulk phenomenon in this regime.

arXiv comment5 pages, 3 postscript figures

References in corpus (22)

• Bose-Einstein Condensation of Excitons in Bilayer Electron Systems
• Spontaneous Inter-layer Coherence in Double-Layer Quantum-Hall Systems I: Charged Vortices and Kosterlitz-Thouless Phase Transitions
• Evidence for a Goldstone Mode in a Double Layer Quantum Hall System
• Counterflow measurements in strongly correlated GaAs hole bilayers: evidence for electron-hole pairing
• Vanishing Hall Resistance at High Magnetic Field in a Double Layer Two-Dimensional Electron System
• Quantum Ferromagnetism and Phase Transitions in Double-Layer Quantum Hall Systems
• Observation of a Linearly Dispersing Collective Mode in a Quantum Hall Ferromagnet
• Lifetime of Two-Dimensional Electrons Measured by Tunneling Spectroscopy
• Activated Transport in the individual Layers that form the ${\nu }_T$=1 Exciton Condensate
• Theory of interlayer tunneling in bi-layer quantum Hall ferromagnets
• Josephson Effect Without Superconductivity: Realization in Quantum Hall Bilayers
• Interlayer tunneling in double-layer quantum Hall pseudo-ferromagnets
• Is there a d.c. Josephson Effect in Bilayer Quantum Hall Systems?
• Coherence Network in the Quantum Hall Bilayer
• Evidence for a finite temperature phase transition in a bilayer quantum Hall system
• Vortices, tunneling and deconfinement in bilayer excitonic quantum Hall superfluid
• Interlayer Transport in Bilayer Quantum Hall Systems
• Coherent Tunneling in Exciton Condensates of Bilayer Quantum Hall Systems
• Deconfinement and Dissipation in Quantum Hall "Josephson" Tunneling
• Dissipation and Tunnelling in Quantum Hall Bilayers
• Tunneling, dissipation, and superfluid transition in quantum Hall bilayers
• Quantum and Classical Dissipative Effects on Tunnelling in Quantum Hall Bilayers

Cited by in corpus (17)

• Coulomb drag
• Interlayer tunneling in counterflow experiments on the excitonic condensate in quantum Hall bilayers
• Quantum Hall Superfluids in Topological Insulator Thin Films
• Dominant parameters for the critical tunneling current in bilayer exciton condensates
• Coupling of Josephson Currents in Quantum Hall Bilayers
• Quantitative description of Josephson-like tunneling in ${\nu }_T=1$ quantum Hall bilayers
• Critical Tunneling Currents in Quantum Hall Superfluids: Pseudospin-Transfer Torque Theory
• Vortex states of a disordered quantum Hall bilayer
• Tunneling at ${\nu }_T=1$ in Quantum Hall Bilayers
• Critical currents and self organization in quantum Hall bilayers
• Transport in Coherent Quantum Hall Bilayers
• Breakdown of counterflow superfluidity in a disordered quantum Hall bilayer
• Influence of topological excitations on Shapiro steps and microwave dynamical conductance in bilayer exciton condensates
• Quantum Hall to Insulator Transition in the Bilayer Quantum Hall Ferromagnet
• Bilayer Quantum Hall Ferromagnet in a Periodic Potential
• Interplay between the coherent and incoherent transport in quantum Hall bilayers
• Diamagnetism and flux creep in bilayer exciton superfluids