Controlling directed transport in two-dimensional periodic structures under crossed electric fields

S. Sengupta, R. Guantes, S. Miret-Artés and P. Hänggi

Physica A: Statistical Mechanics and its Applications, 2004, vol. 338, issue 3, 406-416

Abstract: We investigate different mechanisms for the control of directed transport of particles on two-dimensional periodic and symmetric substrates, based on the application of a crossed static and a bi-harmonic (harmonic mixing) field. We focus on inertial systems in the low friction regime, using a prototypical model for atom-surface diffusion, and demonstrate that a proper control of current reversals can be achieved at moderate field strengths by tuning either the static field or changing the relative phase of the harmonic mixing signal, respectively.

Keywords: Directed transport; Inertial ratchets in 2-D; Control of surface features; Chaotic transport; Current reversals; Brownian motors (search for similar items in EconPapers)
Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:338:y:2004:i:3:p:406-416

DOI: 10.1016/j.physa.2004.02.063

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