Now showing items 1-8 of 8

    • Analytical approach to sorting in periodic and random potentials 

      Gleeson, James P.; Sancho, Jose Maria; Lacasta Palacio, Ana María; Lindenberg, K. (American Physical Society, 2006-04-17)
      Article
      Open Access
      There has been a recent revolution in the ability to manipulate micrometer-sized objects on surfaces patterned by traps or obstacles of controllable configurations and shapes. One application of this technology is to ...
    • Comment on "Diffusion on solif surfaces: anomalous is normal"-Reply 

      Sancho, Jose Maria; Lacasta Palacio, Ana María; Lindenberg, K.; Sokolov, Igor M.; Romero, A. H. (Americah Physical Society, 2005-05-12)
      Article
      Open Access
    • Diffusion on Solid Surface: anomalous is Normal 

      Sancho, Jose Maria; Lacasta Palacio, Ana María; Lindenberg, K.; Sokolov, Igor M.; Romero, A. H. (American Physical Society, 2004-06-23)
      Article
      Open Access
      We present a numerical study of classical particles diffusing on a solid surface. The particles’ motion is modeled by an underdamped Langevin equation with ordinary thermal noise. The particle-surface interaction is described ...
    • Dispersionless transport in a washboard potential 

      Lindenberg, K.; Sancho, Jose Maria; Lacasta Palacio, Ana María; Sokolov, Igor M. (American Physical Society, 2007-01-10)
      Article
      Open Access
      We study and characterize a new dynamical regime of underdamped particles in a tilted washboard potential. We find that for small friction in a finite range of forces the particles move essentially nondispersively, that ...
    • From subdiffusion to superdiffusion of particles on solid surfaces 

      Lacasta Palacio, Ana María; Sancho, Jose Maria; Sokolov, Igor M.; Lindenberg, K. (American Physical Society, 2004-11-15)
      Article
      Open Access
      We present a numerical and partially analytical study of classical particles obeying a Langevin equation that describes diffusion on a surface modeled by a two dimensional potential. The potential may be either periodic ...
    • Particle separation by external fields on periodic surfaces 

      Sancho, Jose Maria; Khoury, M.; Lindenberg, K.; Lacasta Palacio, Ana María (http://dx.doi.org/10.1063/1.478548, 2005-11-30)
      Article
      Open Access
      Particles 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 ...
    • Sorting on periodic surfaces 

      Lacasta Palacio, Ana María; Sancho, Jose Maria; Romero, A. H.; Lindenberg, K. (American Physical Society, 2005-04-29)
      Article
      Open Access
      Particles moving on crystalline surfaces and driven by external forces or ffow ffelds can acquire velocities along directions that deviate from that of the external force. This effect depends on characteristics of the ...
    • Unsolved problems of surface diffusion at low friction 

      Lindenberg, K.; Lacasta Palacio, Ana María; Sancho Herrero, Jose Maria; Romero, A. H. (American Institute of Physics, 2005-11-30)
      Article
      Restricted access - publisher's policy
      Surface transport and diffusion at low damping reveals a number of unexplained or at least not systematically explained behaviors. Here we present two problems that require further study for a full understanding. One ...