Giant magnetoresistance in heterogeneous Cu-Co alloys

A. E. Berkowitz, J. R. Mitchell, M. J. Carey, A. P. Young, S. Zhang, F. E. Spada, F. T. Parker, A. Hutten, G. Thomas

Research output: Contribution to journalArticlepeer-review

1651 Scopus citations


We have observed giant magnetoresistance in heterogeneous thin film Cu-Co alloys consisting of ultrafine Co-rich precipitate particles in a Cu-rich matrix. The magnetoresistance scales inversely with the average particle diameter. This behavior is modeled by including spin-dependent scattering at the interfaces between the particles and the matrix, as well as the spin-dependent scattering in the Co-rich particles.

Original languageEnglish (US)
Pages (from-to)3745-3748
Number of pages4
JournalPhysical review letters
Issue number25
StatePublished - 1992

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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