Electric-Field-Induced Localization and Oscillatory Electro-optical Properties of Semiconductor Superlattices
- 18 January 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 60 (3), 220-223
- https://doi.org/10.1103/physrevlett.60.220
Abstract
We show that the application of an electric field along the growth axis of a semiconductor superlattice results in a strong localization of the eigenstates, a blue shift of the optical-absorption edge, and the presence of oscillations periodic in . These unique electro-optical properties are derived here within the framework of a tight-binding description of the envelope functions and also from numerical solutions of the Schrödinger equation for a finite set of coupled quantum wells.
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