In-Plane Magnetic Structure of Exchange Biased Co/FeF2

ORAL

Abstract

We report on measurements of magnetic X-Ray specular and diffuse scattering on an exchange biased Co/FeF2 bilayer. The data has been analyzed using the full theory of resonant x-ray scattering in the distorted wave born approximation, and various structural and magnetic roughness parameters have been extracted. We find that the length associated with magnetic corrections in the antiferromagnet increases as the temperature decreases, but remains unchanged for the ferromagnet. The diffuse scattering together with the specular reflectivity provide a more complete picture of the magnetic interfacial phenomena that give rise to exchange bias.

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Authors

  • X. Lu

    Physics Dept., Univ. of California San Diego

  • S. Roy

    Advanced Light Source, Lawrence Berkeley National Lab

  • E. Blackburn

    School of Physics and Astronomy, Univ. of Birmingham, UK

  • Mikhail Erekhinsky

    Physics Dept., Univ. of California San Diego

  • Ivan K. Schuller

    Physics Department, University of California-San Diego, La Jolla California 92093-0319, USA, Department of Physics, University of California-San Diego, La Jolla, California 92093-0319, USA, Physics Department, UC San Diego, Department of Physics, University of California San Diego, La Jolla, CA 92093, University of California, San Diego, Physics Dept., Univ. of California San Diego

  • J.B. Kortright

    Advanced Light Source, Lawrence Berkeley National Lab

  • S.K. Sinha

    Physics Dept., Univ. of California San Diego