The cathodic deposition of silver on AgCl occurs preferentially in mechanically pre-structured tracks, which is probably related to the higher surface energy in such tracks. This effect can be used to write miniaturized and complex metal structures on solid electrolytes. These experiments also demonstrate that AFM micro-tips are very appropriate to observe the cathodic deposition process in situ (see Figure).
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Spangenberg et al. (2001) studied this question.