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Asymmetry of Nonlinear Transport and Electron Interactions in Quantum Dots

D. M. Zumbuhl·C. M. Marcus·M. P. Hanson·A. C. Gossard
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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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D. M. Zumbuhl, C. M. Marcus, M. P. Hanson, A. C. Gossard. 2005-08-31. Asymmetry of Nonlinear Transport and Electron Interactions in Quantum Dots. https://doi.org/10.1103/physrevlett.96.206802

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