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  4. Field-induced delocalization and zener breakdown in semiconductor superlattices
 
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1999
Journal Article
Title

Field-induced delocalization and zener breakdown in semiconductor superlattices

Other Title
Feldinduzierte Delokalisierung und Zenerdurchbruch in Halbleitergittern
Abstract
We investigate the electronic structure in strongly coupled superlattices over a wide field range. It is shown that the Wannier-Stark localization is followed by a field-induced delocalization which is due to a strong Zener coupling to continuum states. The associated Zener breakdown is quantitatively shown in a detailed analysis of the absorption. A comprehensive theoretical model excellently describes the experimental results. Zener tunneling times are directly addressed with the help of time-resolved experiments.
Author(s)
Rosam, B.
Löser, F.
Lyssenko, V.
Leo, K.
Glutsch, S.
Bechstedt, F.
Köhler, Klaus  
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
Journal
Physica. B  
Open Access
DOI
10.1016/S0921-4526(99)00266-5
Language
English
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
Keyword(s)
  • III-V semiconductor

  • III-V Halbleiter

  • superlattice

  • Übergitter

  • optical measurement

  • optische Messung

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