Composition of magnetic layer and magnetotransport properties of electrodeposited layered nanostructures (Co-Cu)/Cu and (Ni-Co-Cu)/Cu |
| |
Authors: | S N Ovchinnikova A I Maslii |
| |
Institution: | 1.Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia |
| |
Abstract: | The magnetotransport characteristics of Co-Ni-Cu layered coatings containings 100 nanobilayers were measured at room temperature
in a magnetic field of ±5 kOe. The coatings were deposited onto nickel sputtered on glass. It is shown that a decrease in
the content of copper in the magnetic layer due to the conversion of copper ions in the solution into the multi-charge anionic
complexes (by the example of sulfosalicylate electrolyte) leads to an increase in the giant magnetoresistance (GMR) effect.
The stabilization of composition of Co-based magnetic layer by shifting the copper deposition potential to the equilibrium
potential of Co or by introducing Ni, which assists the deposit passivation, leads to a decrease of the GMR effect. A benefit
effect of partial dissolution of Co at the deposition potentials of nonmagnetic layer on the magnetotransport characteristics
of multilayered coatings is first revealed. It is supposed that the effect is caused by the morphological factor of surface
smoothing due to preferential dissolution of projecting areas of magnetic layer. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |