ELECTRODEPOSITION OF METALLIC MULTILAYERS WITH MODULATED ELECTRIC REGIMES

Pulsed potentiostatic deposition provides a nevi means for the elabora tion of multilayers to produce magnetic sensors, Alternate layers of n ickel or cobalt of nominal thicknesses from a few angstroms to a few n anometres separated by a copper film have been electrodeposited from a single electrolyte containing a low concentration of copper ions. The thicknesses and deposition rate have been monitored in-situ with a qu artz microbalance during the growth of each layer in order to obtain p recise information to account for the physical properties of the heter ogeneous materials prepared by this process.