Evolution of dynamic localization regimes in coupled minibands

P. H. Rivera, P. A. Schulz

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

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We consider the behaviour of two coupled symmetric electronic minibands in the presence of an AC intense field. Symmetric coupled minibands are realized as dimerization procedures. The minibands are emulated by a tight-binding finite chain, whereas the interaction with an AC field is described by a time-independent Hamiltonian. We follow the evolution of dressed minibands, non perturbatively, in a wide frequency range. For one dimerization procedure, a transition between both limits can be systematically followed and a dynamic breakdown is unambigously identified. The most striking effect that may occur is a field-induced analog of an insulator-metal transition due to the suppression of a Peierls-like instability.

Idioma originalInglés
Páginas (desde-hasta)685-689
Número de páginas5
PublicaciónBrazilian Journal of Physics
EstadoPublicada - dic. 1999
Publicado de forma externa


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