title: Rectification and phase locking for particles on symmetric two-dimensional periodic substrates.
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.
authors.affiliation: CNLS, Theoretical, and Applied Physics Divisions, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: C
authors.initials: C
authors.lastname: Reichhardt
authors.forename: C J
authors.initials: CJ
authors.lastname: Olson
authors.forename: M B
authors.initials: MB
authors.lastname: Hastings