Effects of Lateral Diffusion on the Dynamics of Desorption

Tjipto Juwono; Ibrahim Abou Hamad; Per Arne Rikvold

doi:10.1007/s10008-012-1897-y

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arXiv · 1209.2345

Effects of Lateral Diffusion on the Dynamics of Desorption

Tjipto Juwono·Ibrahim Abou Hamad·Per Arne Rikvold

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Abstract

The adsorbate dynamics during simultaneous action of desorption and lateral adsorbate diffusion is studied in a simple lattice-gas model by kinetic Monte Carlo simulations. It is found that the action of the coverage-conserving diffusion process during the course of the desorption has two distinct, competing effects: a general acceleration of the desorption process, and a coarsening of the adsorbate configuration through Ostwald ripening. The balance between these two effects is governed by the structure of the adsorbate layer at the beginning of the desorption process.

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Tjipto Juwono, Ibrahim Abou Hamad, Per Arne Rikvold. 2012-09-11. Effects of Lateral Diffusion on the Dynamics of Desorption. https://doi.org/10.1007/s10008-012-1897-y

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