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Rectification and phase locking for particles on symmetric two-dimensional periodic substrates
C Reichhardt1, C J Olson, M B Hastings
1CNLS, Theoretical, and Applied Physics Divisions, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Physical Review Letters
|July 5, 2002
Abstract:
We demonstrate a rectification phenomenon for overdamped particles interacting with a 2D symmetric periodic substrate when driven with a dc and a circular ac drive. As a function of longitudinal dc amplitude, the longitudinal velocity increases in a series of quantized steps distinct from Shapiro steps with transverse rectification occurring near these transitions. The rectification phenomenon is explained using symmetry arguments and a simple model.