Abstract
The presence of halides in an electrolyte can strongly influence the evolution of the surface morphology of an electrodeposited polycrystalline metal film, with implications for its microstructure and applications. Surface coarsening can take place with or without an increase in surface slope. We show that the addition of chloride anions leads to significant changes in the surface slope evolution for Ni electrodeposition. We shall also present new data that show the effect of bromide adsorption on the dynamics of Au atoms in nano-contacts formed by the STM break junction technique.
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