Conductance through a single nonlinear impurity

Bahlouli H and M.I. Molina
PHYSICS LETTERS A 294, 2 (2002)


We use the discrete nonlinear Schrodinger (DNLS) equation to describe tunneling through a single magnetic impurity connected to two perfect leads, in the presence of a magnetic field. Due to the presence of a strong on-site nonlinear interaction between two opposite spins at the impurity site, the zero voltage conductance exhibits strong correlations between parallel and anti-parallel spin conduction channels. (C) 2002 Elsevier Science B.V. All rights reserved.


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