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Giant Magnetoresistance and Oscillatory Interlayer Exchange Coupling in Copper Based Multilayers

Published online by Cambridge University Press:  26 February 2011

S.S.P. Parkin*
Affiliation:
IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose CA 95120-6099
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Abstract

Giant magnetoresistance values exceeding 65% at room temperature are reported in antiferromagnetically coupled Co/Cu multilayers grown on Fe buffer layers using magnetron sputter deposition. For such samples the saturation fields exceed 10 kOe. However by taking advantage of the rapid decrease of the Co interlayer magnetic exchange coupling with increasing Cu spacer layer thickness, large magnetoresistance values exceeding 35% can be obtained at room temperature for saturation fields of just a few hundred oersted.

Type
Research Article
Copyright
Copyright © Materials Research Society 1992

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