Electron-electron interactions and two-dimensional - two-dimensional tunneling

Abstract

We derive and evaluate expressions for the dc tunneling conductance between interacting two-dimensional electron systems at non-zero temperature. The possibility of using the dependence of the tunneling conductance on voltage and temperature to determine the temperature-dependent electron-electron scattering rate at the Fermi energy is discussed. The finite electronic lifetime produced by electron-electron interactions is calculated as a function of temperature for quasiparticles near the Fermi circle. Vertex corrections to the random phase approximation substantially increase the electronic scattering rate. Our results are in an excellent quantitative agreement with experiment.

Revtex style, 21 pages and 8 postscript figures in a separate file; Phys. Rev. B (in press)

References in corpus (6)

• Coulomb drag between two-dimensional electron systems
• Coulomb drag between disordered two-dimensional electron gas layers
• Lifetime of Two-Dimensional Electrons Measured by Tunneling Spectroscopy
• Coulomb Drag as a Probe of Coupled Plasmon Modes in Parallel Quantum Wells
• Tunneling Conductance Between Parallel Two Dimensional Electron Systems
• Scaling Behavior of the Activated Conductivity in a Quantum Hall Liquid

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