Asymmetry of Nonlinear Transport and Electron Interactions in Quantum Dots

Abstract

The symmetry properties of transport beyond the linear regime in chaotic quantum dots are investigated experimentally. A component of differential conductance that is antisymmetric in both applied source-drain bias V and magnetic field B, absent in linear transport, is found to exhibit mesoscopic fluctuations around a zero average. Typical values of this component allow a measurement of the electron interaction strength.

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References in corpus (6)

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• Symmetry of two terminal, non-linear electric conduction
• Signature of the electron-electron interaction in the magnetic field dependence of nonlinear I-V characteristics in mesoscopic systems
• Magnetic field asymmetry of nonlinear transport in carbon nanotubes
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