Abstract:We studied in this paper the effect of nonlinear interaction on the PD of a one-dimensional Kronig-Penney chain. In the quasi-ballistic regime (L<<(2kF)-1<< (localization length)), an attractive nonlinear potential leads to a smooth peak with an oscillatory shift in its position, while for repulsive potentials the peak becomes sharper and moves towards . In the quasi-metallic regime ((2kF)-1< Show more
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