EDP Sciences Journals List
Home Document
Subscriber Authentication Point
Issue Eur. Phys. J. B
Volume 4, Number 4, August II 1998
Page(s) 413 - 420
DOI 10.1007/s100510050398

Contents | PDF_file_(302 Kb)

Eur. Phys. J. B 4, 413-420

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

L. Piraux1 - S. Dubois1 - A. Fert2 - L. Belliard3

1 Unité de Physico-Chimie et de Physique des Matériaux, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
2 Unité Mixte de Recherche du Centre National de la Recherche Scientifique et de Thomson, Laboratoire Central de Recherches Thomson, 91404 Orsay, France
and
Université Paris-Sud, bâtiment 510, 91405 Orsay, France
3 Laboratoire de Physique des Solides, Université Paris-Sud, 91405 Orsay, France

Received: 25 January 1998 / Accepted: 6 May 1998

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 $\mu$m. 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

Author for correspondance: piraux@pcpm.ucl.ac.be

Contents | PDF_file_(302 Kb)

Copyright EDP Sciences, Springer-Verlag



What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.
  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.