A beam of Pt- self-ions was used to create a suitable structure on step edges. The surface mass diffusion coefficients then followed from the decay of Fourier components observed by low-energy electron microscopy at various annealing temperatures. The surface mass diffusion coefficient at 710 to 1520K, deduced here, together with previous step fluctuation spectroscopic data, could be described by:

D (cm2/s) = 4 x 10-3exp[-1.47(eV)/kT]

M.Rajappan, W.Swiech, M.Ondrejcek, C.P.Flynn: Journal of Physics - Condensed Matter, 2007, 19[22], 226006