Interpretation of the giant magnetoresistance effect in Co/Cu(100) multilayers with the quantum model of giant magnetoresistance

S. K.J. Lenczowski, M. A.M. Gijs, J. B. Giesbers, R. J.M. van de Veerdonk, W. J.M. de Jonge

Research output: Contribution to journalArticleAcademicpeer-review

45 Citations (Scopus)

Abstract

We have measured the magnetoresistance of high-vacuum-sputtered Co/Cu(100) multilayers grown on Cu buffer layers. The magnetoresistance in the first antiferromagnetic- (AF-) coupling peak is very sensitive to the buffer layer thickness. We find a linear dependence between the actual measured magnetoresistance and the fraction of AF coupling, as determined by magnetization measurements. We compare our Co/Cu(100) magnetoresistance data at 4 K of completely antiparallel-aligned multilayers with the quantum model of giant magnetoresistance of Levy, Zhang, and Fert. This reveals evidence for strong spin-dependent interface scattering, whereas the spin dependence of the bulk scattering in Co is small.

Original languageEnglish
Pages (from-to)9982-9988
Number of pages7
JournalPhysical Review B
Volume50
Issue number14
DOIs
Publication statusPublished - 1 Jan 1994

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