Spin Mixing and Spin-Current Asymmetry Measured by Domain Wall Magnetoresistance

C. H. Marrows and B. C. Dalton
Phys. Rev. Lett. 92, 097206 – Published 4 March 2004

Abstract

By making a straightforward reformulation of the Levy-Zhang spin-mistracking model, we show that it is possible to extract the spin asymmetry of a current from measurements of domain wall resistance. Experiments on epitaxial films of L10 FePd are reported, showing that, while the micromagnetic structure of the sample is stable, the resistivity and the domain wall resistance change by a factor 3 between helium and room temperature. The temperature dependence of the spin asymmetry of the current has been determined over a wide range in a single material.

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  • Received 14 August 2003

DOI:https://doi.org/10.1103/PhysRevLett.92.097206

©2004 American Physical Society

Authors & Affiliations

C. H. Marrows* and B. C. Dalton

  • School of Physics and Astronomy, E.C. Stoner Laboratory, University of Leeds, Leeds LS2 9JT, United Kingdom

  • *Electronic address: c.marrows@leeds.ac.uk
  • Present address: The Media Laboratory, MIT, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, USA.

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Issue

Vol. 92, Iss. 9 — 5 March 2004

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