Suppression of Kondo effect in a quantum dot by external irradiation

Details Suppression of Kondo effect in a quantum dot by external irradiation Suppression of Kondo effect in a quantum dot by external irradiation

1999-03-30

arxiv.org/abs/cond-mat/9903436v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.83.384

We demonstrate that the external irradiation brings decoherence in the spin
states of the quantum dot. This effect cuts off the Kondo anomaly in
conductance even at zero temperature. We evaluate the dependence of the DC
conductance in the Kondo regime on the power of irradiation, this dependence
being determined by the decoherence.

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