Nonlinear Conductance for the Two Channel Anderson Model

Preprint

21 May 1994

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9405059

Abstract

Using the integral equations of the Noncrossing Approximation, the differential conductance is computed as a function of voltage for scattering from a two channel Kondo impurity in a point contact. The results compare well to experimental data on Cu point contacts by Ralph and Buhrman. They support a recently proposed scaling hypothesis, and also show finite temperature corrections to scaling in agreement with experiment. The conductance signal is predicted to be asymmetric in the bias when the impurity is not equally coupled to left and right moving electrons.

Keywords

NONCROSSING APPROXIMATION
NONLINEAR CONDUCTANCE
INTEGRAL EQUATIONS
CHANNEL ANDERSON
POINT CONTACTS
ANDERSON MODEL
TWO CHANNEL
SCATTERING

All Related Versions

Version 1, 1994-05-21, ArXiv
Published version: Physical Review Letters, 73 (14), 1967.

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