Interplay Between the Electric Field and the Nonlinear Interaction in Ordered and Disordered Chains

Details Interplay Between the Electric Field and the Nonlinear Interaction in Ordered and Disordered Chains Interplay Between the Electric Field and the Nonlinear Interaction in Ordered and Disordered Chains

1999-08-30

arxiv.org/abs/cond-mat/9908456v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages (latex), 3 eps figures. Submitted to PRB

Scientific paper

10.1103/PhysRevB.62.2987

A simple Kronig-Penney model is used to study the effect of nonlinear interactions on the electronic properties of ordered and disordered electrified chains. In the case of ordered potentials, we found that the nonlinearity suppresses the Wannier-Stark effect caused by the electric field. In the case of disordered potentials, the nonlinearity gives rise to a transition from superlocalized to weakly localized states.

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