J M Sancho et al 2005 J. Phys.: Condens. Matter 17 S4151 doi:10.1088/0953-8984/17/49/010
J M Sancho1,4, M Khoury1, K Lindenberg2 and A M Lacasta3
Show affiliationsParticles moving on perfect periodic surfaces under the influence of external forces may move along directions that deviate from that of the force. We briefly recall previous results for transport of particles on surfaces with periodic traps or periodic obstacles driven by a constant external force, and present new results for particles moving in a harmonic periodic potential. The sorting properties are explored as a function of a number of control parameters, specifically the friction, force amplitude and direction, temperature, and lattice constants.
68.35.Fx Diffusion; interface formation
68.49.Df Molecule scattering from surfaces (energy transfer, resonances, trapping)
Issue 49 (14 December 2005)
Received 19 July 2005, in final form 28 September 2005
Published 25 November 2005
J M Sancho et al 2005 J. Phys.: Condens. Matter 17 S4151
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