Absolute Transverse Mobility and Ratchet Effect on Periodic 2D Symmetric Substrates

Details Absolute Transverse Mobility and Ratchet Effect on Periodic 2D Symmetric Substrates Absolute Transverse Mobility and Ratchet Effect on Periodic 2D Symmetric Substrates

2002-12-24

arxiv.org/abs/cond-mat/0212576v2

Phys. Rev. E 68, 046102 (2003)

Physics

Condensed Matter

Statistical Mechanics

8 pages, 8 postscript figures. Expanded version with additional phase diagrams and discussion

Scientific paper

10.1103/PhysRevE.68.046102

We present a simple model of an overdamped particle moving on a two dimensional symmetric periodic substrate with a dc drive in the longitudinal direction and additional ac drives in both the longitudinal and transverse directions. For certain regimes we find that a finite longitudinal dc force produces a net dc response only in the transverse direction, which we term absolute transverse mobility. Additionally we find regimes exhibiting a ratchet effect in the absence of an applied dc drive.

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