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Proceedings Paper

Synchronization of dipole domains in GHz-driven superlattices
Author(s): A. K. Jappsen; A. Amann; A. Wacker; Ekkehard Schomburg; E. Schoell
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Paper Abstract

We consider a semiconductor superlattice biased into the regime of negative differential conductivity and driven by an additional GHz ac voltage, and find frequency-locked or quasiperiodic propagating field domains. With increasing driving frequency, the complex impedance exhibits strong variations of its amplitude and phase. An anomalous phase shift appears as a result of phase synchronization of the traveling domains.

Paper Details

Date Published: 11 June 2003
PDF: 4 pages
Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003); doi: 10.1117/12.513815
Show Author Affiliations
A. K. Jappsen, Technische Univ. Berlin (Germany)
A. Amann, Technische Univ. Berlin (Germany)
A. Wacker, Technische Univ. Berlin (Germany)
Ekkehard Schomburg, Univ. Regensburg (Germany)
E. Schoell, Technische Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 5023:
10th International Symposium on Nanostructures: Physics and Technology
Zhores I. Alferov; Leo Esaki, Editor(s)

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