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Non-linear conductivity and quantum interference in disordered metals

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Abstract:

We report on the non-linear electric field effect in the conductivity of disordered conductors. We find that the electron-electron interaction in the particle-hole triplet channel strongly affects the non-linear conductivity. The non-linear effect introduces a field dependent temperature scale TE and provides a microscopic mechanism for electric field scaling at the metal-insulator transition. We also study the magnetic field dependence of the non-linear conductivity and suggest possible ways to experimentally verify our predictions. These effects offer a new probe to test the role of quantum interference at the metal-insulator transition in disordered conductors.

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Received 9 February 2000

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Leadbeater, M., Raimondi, R., Schwab, P. et al. Non-linear conductivity and quantum interference in disordered metals. Eur. Phys. J. B 15, 277–281 (2000). https://doi.org/10.1007/s100510051126

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  • DOI: https://doi.org/10.1007/s100510051126

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