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, and G. Thomas
Phys. Rev. Lett. 68, 3745 – Published 22 June 1992
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Abstract

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.

  • Received 20 February 1992

DOI:https://doi.org/10.1103/PhysRevLett.68.3745

©1992 American Physical Society

Authors & Affiliations

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

  • Department of Physics, University of California at San Diego, La Jolla, California 92093
  • Center for Magnetic Recording Research, University of California at San Diego, La Jolla, California 92093
  • Department of Physics, New York University, 4 Washington Place, New York, New York 10003
  • Department of Materials Science and Mineral Engineering and National Center for Electron Microscopy, Lawrence Berkeley Laboratory, University of California at Berkeley, California 94720

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Issue

Vol. 68, Iss. 25 — 22 June 1992

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