The energy barrier and pre-factor for the terrace diffusion of Au atoms on Ir(111) were evaluated by using scanning tunnelling microscopy. From the temperature dependence of the island density, it was found that the terrace diffusion barrier and pre-factor were 0.097eV and 9.4 x 109/s, respectively.

Terrace Diffusion of Au Atoms on Ir(111). S.Ogura, K.Fukutani: Journal of Physics - Conference Series, 2008, 100[7], 072003 (4pp)