Surface Diffusion at Electrocrystallisation
Journal Title: Фізика і хімія твердого тіла - Year 2014, Vol 15, Issue 4
Abstract
Surface diffusion of ad-atoms of nickel, copper and iron on its own substrates at electrocrystallisation was investigated. With the help of quantum-mechanical approach the activation energies for the two directions of hopping at different potentials of the substrate. The activation energy for surface diffusion is determined as the difference between the total energy of the crystal with the ad-atom in the equilibrium adsorption state in which energy is minimal and in the transition point of the saddle. It is shown that an increase in the surface potential is an increase in the activation energy of surface diffusion.
Authors and Affiliations
E. Ph. Shtapenko, V. A. Zabludovsky, V. V. Dudkina
Keywords
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