The temperature dependence of the perpendicular giant magnetoresistance in Co/Cu multilayered nanowires

  • L. Piraux
  • S. Dubois
  • A. Fert
  • L. Belliard
Article

DOI: 10.1007/s100510050398

Cite this article as:
Piraux, L., Dubois, S., Fert, A. et al. Eur. Phys. J. B (1998) 4: 413. doi:10.1007/s100510050398

Abstract:

A theory, based on earlier work by Valet and Fert, is first presented to describe the influence of temperature on the perpendicular giant magnetoresistance (GMR) in multilayers. Then we present GMR measurements performed at T=77 K and at room temperature on Co/Cu multilayered nanowires with layer thicknesses ranging from a few nm to 1 μm. We use our model to obtain a good quantitative fit to the experimental results in both the short spin diffusion length limit and out of this limit. We discuss the temperature dependence of the bulk parameters, the scattering spin asymmetry coefficient and spin diffusion length in the Co layers.

PACS. 72.15.Gd Galvanomagnetic and other magnetotransport effects - 75.70.-i Magnetic films and multilayers 

Copyright information

© EDP Sciences, Springer-Verlag 1998

Authors and Affiliations

  • L. Piraux
    • 1
  • S. Dubois
    • 1
  • A. Fert
    • 2
  • L. Belliard
    • 3
  1. 1.Unité de Physico-Chimie et de Physique des MatériauxUniversité Catholique de LouvainLouvain-la-NeuveBelgium
  2. 2.Laboratoire Central de Recherches ThomsonUnité Mixte de Recherche du Centre National de la Recherche Scientifique et de ThomsonOrsayFrance
  3. 3.Laboratoire de Physique des SolidesUniversité Paris-SudOrsayFrance

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