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2001
Journal Article
Titel
Field-induced delocalization and Zener breakdown in semiconductor superlattices
Alternative
Feldinduzierte Delokalisierung und Zenerdurchbruch in Halbleiterübergittern
Abstract
We investigate the energy spectrum and the electron dynamics of a band in a semiconductor superlattice as a function of the electric field. Linear optical spectroscopy shows that, for high fields, the well-known localization of the Bloch states is followed by a field-induced delocalization, associated with Zener breakdown. Using time-resolved measurements, we observe Bloch oscillations in a regime where they are damped by Zener breakdown.
Author(s)