Electrodeposition of silver as a precursor matrix of magnetoresistive materials

The design of a bath able to electrodeposit silver at a relatively high negative potential was attained. The preparation of silver films at negative potentials in conditions at which dendritic growth is avoided, makes the process useful in silver-matrix magnetoresistive materials manufacture. Thiourea as a complexing agent was able to accomplish this purpose. Results indicate that thiourea bath produces homogeneous and fine-grained silver deposits with low sulfur content, avoiding hydrogen reaction in the potential range at which coherent deposits were obtained. Morphological and structural analysis were made as a function of temperature and the presence in the bath of other species.