Wannier-Stark resonances in semiconductor superlattices

  • Wannier-Stark states for semiconductor superlattices in strong static fields, where the interband Landau-Zener tunneling cannot be neglected, are rigorously calculated. The lifetime of these metastable states was found to show multiscale oscillations as a function of the static field, which is explained by an interaction with above-barrier resonances. An equation, expressing the absorption spectrum of semiconductor superlattices in terms of the resonance Wannier-Stark states is obtained and used to calculate the absorption spectrum in the region of high static fields.

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Metadaten
Author:M. Glück, A. R. Kolovsky, H. J. Korsch, F. Zimmer
URN (permanent link):urn:nbn:de:hbz:386-kluedo-10911
Document Type:Preprint
Language of publication:English
Year of Completion:2001
Year of Publication:2001
Publishing Institute:Technische Universität Kaiserslautern
Tag:Wannier-Stark states ; absorption spectrum; interband tunneling ; metastable states ; semiconductor superlattice
Faculties / Organisational entities:Fachbereich Physik
DDC-Cassification:530 Physik

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