Abstract
Cobalt+nickel alloys were electrodeposited on different base-silicon substrates since these alloys are interesting for several magnetic device applications. Acid chloride baths were used to obtain magnetic cobalt+nickel layers directly over silicon surfaces, tantalum silicide or metallic seed-layers. Although the initial stages of nucleation were influenced by the kind of substrate, in all substrates nucleation and three-dimensional growth evolving to compact, fine-grained and homogeneous deposition, took place. Preferential deposition of cobalt and anomalous codeposition occurred. Different compositions of the alloy were obtained, as is normal with a solid–solution formation. The cobalt content in the deposit rose with increase in both cobalt(ii) and saccharin concentrations and fell with decrease in the applied potential or current density.
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Gómez, E., Vallés, E. Electrodeposition of Co + Ni alloys on modified silicon substrates. Journal of Applied Electrochemistry 29, 803–810 (1999). https://doi.org/10.1023/A:1003580302490
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DOI: https://doi.org/10.1023/A:1003580302490