The pulsed deposition of multilayered alloys of cobalt and copper will be described. These metallic layers can be as thin as 6 monolayers and constitute a material with unique magnetic characteristics. Their giant magnetoresistive (GMR) behavior will be described, and it will be shown that by varyng the thickness of the non-magnetic layer, the degree of magnetic coupling between layers can be changed, therefore changing their magnetoresistivity. Further, it will be demonstrated that the sensitivity of the magnetic response with field can be strongly influenced by the deposition parameters. Variation in GMR behavior follows an RKKY-type dependence on the copper thickness. Potential applications of these electrodeposited multilayered materials include GMR sensors, magnetic storage devices and magnetorestrictive sensors.
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