Synchronization of dipole domains in GHz-driven superlattices

A. K. Jappsen; A. Amann; A. Wacker; Ekkehard Schomburg; E. Schoell

doi:10.1117/12.513815

11 June 2003 Synchronization of dipole domains in GHz-driven superlattices

A. K. Jappsen, A. Amann, A. Wacker, Ekkehard Schomburg, E. Schoell

Proceedings Volume 5023, 10th International Symposium on Nanostructures: Physics and Technology; (2003) https://doi.org/10.1117/12.513815
Event: 2003 Chapter books, 2003, Bellingham, WA, United States

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.

Citation Download Citation

A. K. Jappsen, A. Amann, A. Wacker, Ekkehard Schomburg, and E. Schoell "Synchronization of dipole domains in GHz-driven superlattices", Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003); https://doi.org/10.1117/12.513815

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