Langevin-like giant magnetoresistance in Co-Cu superlattices

D. Barlett*, F. Tsui, D. Glick, L. Lauhon, T. Mandrekar, C. Uher, Roy Clarke

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

We present evidence for a new type of giant magnetoresistance in (111) cobalt-copper superlattices with atomically smooth interfaces. We propose that the lowered dimensionality of the structure leads to an enhancement of the scattering of conduction electrons from paramagnetic interfaces obeying a Langevin-like saturation at very high fields, well beyond the switching field of the Co layers. The findings help to explain similarities in magnetotransport behavior with recently reported granular systems as well as differences with antiferromagnetically coupled multilayers.

Original languageEnglish (US)
Pages (from-to)1521-1523
Number of pages3
JournalPhysical Review B
Volume49
Issue number2
DOIs
StatePublished - 1994

ASJC Scopus subject areas

  • Condensed Matter Physics

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