Kondo-assisted and resonant tunneling via a single charge trap: A realization of the Anderson model out of equilibrium
- 23 May 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 72 (21), 3401-3404
- https://doi.org/10.1103/physrevlett.72.3401
Abstract
We have observed both Kondo-assisted tunneling and simple resonant tunneling via a single charge trap state in the voltage-dependent differential conductance of a point-contact tunnel barrier. From the resonant tunneling signal, we determine parameters of the Anderson model governing the state. This allows comparison of the measured Kondo-assisted signal to results of the Anderson model. The Kondo signal is not adequately described by perturbation theory, but is in qualitative agreement with nonperturbative calculations.Keywords
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