Correlations, compressibility, and capacitance in double-quantum-well systems in the quantum Hall regime

Abstract

In the quantum Hall regime, electronic correlations in double-layer two-dimensional electron systems are strong because the kinetic energy is quenched by Landau quantization. In this article we point out that these correlations are reflected in the way the partitioning of charge between the two-layers responds to a bias potential. We report on illustrative calculations based on an unrestricted Hartree-Fock approximation which allows for spontaneous inter-layer phase coherence. The possibility of studying inter-layer correlations by capacitive coupling to separately contacted two-dimensional layers is discussed in detail.

RevTex style, 21 pages, 6 postscript figures in a separate file; Phys. Rev. B (in press)

References in corpus (6)

• Quantum Ferromagnetism and Phase Transitions in Double-Layer Quantum Hall Systems
• Coulomb drag between two-dimensional electron systems
• Coulomb drag between disordered two-dimensional electron gas layers
• Coulomb Drag as a Probe of Coupled Plasmon Modes in Parallel Quantum Wells
• Introduction to the Physics of the Quantum Hall Regime
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Cited by in corpus (11)

• Magnetic Anisotropy in Quantum Hall Ferromagnets
• Broken Symmetry Ground States in ν=2 Bilayer Quantum Hall Systems
• Electromodulation of the bilayer $\nu$=2 quantum Hall phase diagram
• Incommensurate ground state of double-layer quantum Hall systems
• Hybridization of electron subbands in a double quantum well at quantizing magnetic field
• Double-Layer Systems at Zero Magnetic Field
• Spontaneous coherence and the quantum Hall Effect in triple-layer electron systems
• Quantum capacitance of double-layer graphene
• Opening an energy gap in an electron double layer system at integer filling factor in a tilted magnetic field
• Rippled state of double-layer quantum Hall systems
• Magnetic-Field-Induced Hybridization of Electron Subbands in a Coupled Double Quantum Well