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Shot noise in out-of equilibrium resonant tunneling through an Anderson impurity

Guo-Hui Ding and Tai-Kai Ng
Phys. Rev. B 56, R15521(R) – Published 15 December 1997
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Abstract

The noise characteristics of a single Anderson impurity coupled to two leads at different chemical potential is studied using the equation of motion method. We find that the current noise spectral density has an upturn as the frequency matches the chemical potential difference at low temperature. The low-frequency noise shows resonant behavior at equilibrium at low temperature because of the Kondo effect, and is suppressed significantly due to the Coulomb blockade effect on the impurity site when ΔμTTK.

  • Received 28 August 1997

DOI:https://doi.org/10.1103/PhysRevB.56.R15521

©1997 American Physical Society

Authors & Affiliations

Guo-Hui Ding and Tai-Kai Ng

  • Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China

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Vol. 56, Iss. 24 — 15 December 1997

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