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. 2002 Apr 15;88(15):156102.
doi: 10.1103/PhysRevLett.88.156102. Epub 2002 Mar 27.

Long jumps in the surface diffusion of large molecules

M Schunack  1 , T R Linderoth, F Rosei, E Laegsgaard, I Stensgaard, F Besenbacher
Affiliations

Long jumps in the surface diffusion of large molecules

M Schunack et al. Phys Rev Lett. .

Abstract

We have studied the diffusion of the two organic molecules DC and HtBDC on the Cu(110) surface by scanning tunneling microscopy. Surprisingly, we find that long jumps, spanning multiple lattice spacings, play a dominating role in the diffusion of these molecules--the root-mean-square jump lengths are as large as 3.9 and 6.8 lattice spacings, respectively. The presence of long jumps is revealed by a new and simple method of analysis, which is tested by kinetic Monte Carlo simulations.

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