Abstract
We have investigated the effect of lateral interactions on the diffusion of adsorbates on surfaces using laser diffraction of second harmonic light. Computer simulations of diffusion for a number of interaction models predict a wide range of behavior for the decay of the diffraction signals during diffusion. Experimental results for the diffusion of potassium on Re(001) show that the activation energy for diffusion reaches a minimum at a coverage of approximately 0.7 ML and then increases. The experimentally determined activation energies and diffusion coefficients as a function of potassium coverage are described well by a depolarization model derived from work function measurements.
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© 1997 Springer Science+Business Media New York
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Verhoef, R.W., Zhao, W., Asscher, M. (1997). Diffusion on Surfaces Affected by Lateral Interactions. In: Tringides, M.C. (eds) Surface Diffusion. NATO ASI Series, vol 360. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-0262-7_44
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DOI: https://doi.org/10.1007/978-1-4899-0262-7_44
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