Absence of localization in a nonlinear random binary alloy

M. I. Molina, G. P. Tsironis

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)


We investigate electronic propagation in a one-dimensional nonlinear random binary alloy modeled by a discrete nonlinear Schrödinger equation. We find absence of electronic localization except for large nonlinearity parameter values. The presence of disorder is completely overcome by the nonlinear terms leading to ballistic propagation of the untrapped electronic fraction. The existence of disorder in the model is manifested in the power-law decay of the transmissivity of plane waves through the medium as a function of the system size.

Original languageEnglish
Pages (from-to)464-467
Number of pages4
JournalPhysical Review Letters
Issue number3
Publication statusPublished - Jan 1 1994

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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