Synchronization, zero-resistance states and rotating Wigner crystal

A. D. Chepelianskii, A. S. Pikovsky and D. L. Shepelyansky

The European Physical Journal B: Condensed Matter and Complex Systems, 2007, vol. 60, issue 2, 225-229

Abstract: We show, in a framework of a classical nonequilibrium model, that rotational angles of electrons moving in two dimensions (2D) in a perpendicular magnetic field can be synchronized by an external microwave field whose frequency is close to the Larmor frequency. The synchronization eliminates collisions between electrons and thus creates a regime with zero diffusion corresponding to the zero-resistance states observed in experiments with high mobility 2D electron gas (2DEG). For long range Coulomb interactions electrons form a rotating hexagonal Wigner crystal. Possible relevance of this effect of synchronization-induced self-assembly for planetary rings is discussed. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Keywords: 73.40.-c Electronic transport in interface structures, 05.45.Xt Synchronization; coupled oscillators, 05.20.-y Classical statistical mechanics, (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1140/epjb/e2007-00341-x

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