Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2003-11-20
Europhys. Lett. 68, 303 (2004)
Physics
Condensed Matter
Soft Condensed Matter
4 pages, 4 postscript figures
Scientific paper
10.1209/epl/i2004-10182-9
For collectively interacting repulsive particles driven on triangular substrates, we show that for certain directions of drive a spontaneous symmetry breaking phenomena occurs where the particles can flow in one of two directions that are not aligned with the external drive, giving rise to a positive or negative Hall current. Along these directions, the particle flow is highly ordered, while in the direction of the drive the flow is disordered. We also find a number of dynamical phase transitions and unusual hysteretic properties that arise due to the symmetry breaking properties of the flows.
Olson Reichhardt C. J.
Reichhardt Charles
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