Controlling high-frequency collective electron dynamics via single-particle complexity

N. Alexeeva, M. T. Greenaway, A. G. Balanov, O. Makarovsky, A. Patanè, M. B. Gaifullin, F. Kusmartsev, T. M. Fromhold

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

We demonstrate, through experiment and theory, enhanced high-frequency current oscillations due to magnetically-induced conduction resonances in superlattices. Strong increase in the ac power originates from complex single-electron dynamics, characterized by abrupt resonant transitions between unbound and localized trajectories, which trigger and shape propagating charge domains. Our data demonstrate that external fields can tune the collective behavior of quantum particles by imprinting configurable patterns in the single-particle classical phase space.

Original languageBritish English
Article number024102
JournalPhysical Review Letters
Volume109
Issue number2
DOIs
StatePublished - 11 Jul 2012

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