Synchnonization, zero-resistance states and rotating Wigner crystal

Details Synchnonization, zero-resistance states and rotating Wigner crystal Synchnonization, zero-resistance states and rotating Wigner crystal

2007-07-18

arxiv.org/abs/0707.2694v1

Eur. Phys. J. B 60, 225-229 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figs

Scientific paper

10.1140/epjb/e2007-00341-x

We show that rotational angles of electrons moving in two dimensions (2D) in a perpendicular magnetic field can be synchronized by an external microwave field which 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 for planetary rings is discussed.

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