Microwave control of directed transport in asymmetric antidot structures

A. D. Chepelianskii ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2006, vol. 52, issue 3, 389-396

Abstract: It is shown that a polarized microwave radiation creates directed transport in an asymmetric antidot superlattice in two dimensional electron gas. A numerical method is developed that allows to establish the dependence of this ratchet effect on several parameters relevant for real experimental studies. It is applied to the concrete case of a semidisk Galton board where the electron dynamics is chaotic in the absence of microwave driving. The obtained results show that strong currents can be reached at a relatively low microwave power. This effect opens new possibilities for microwave control of transport in asymmetric superlattices. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Keywords: 05.45.Ac Low-dimensional chaos; 05.60.-k Transport processes; 72.40.+w Photoconduction and photovoltaic effects (search for similar items in EconPapers)
Date: 2006
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Citations: View citations in EconPapers (1)

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DOI: 10.1140/epjb/e2006-00295-5

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