Simulation was used to determine the effect of temperature and adatom size and energy parameters upon the occurrence of the exchange mechanism in cross-channel diffusion on the Pt(110) surface. The results showed that the exchange mechanism was highly dependent upon temperature: occurring readily at sufficiently high temperatures, and dependent upon adatom size in the case of a weakly interacting adatom. Within the limits of the study, this was not so in the case of a strongly interacting adatom.

Analysis of the Cross-Channel Diffusion Mechanism. Garofalini, S.H., Halicioglu, T.: Surface Science, 1981, 112[1-2], L775-8