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57Fe/Co Multilayers Investigated by CEMS and Nuclear Resonance Reflectivity Time Spectra Using Grazing Incident SR

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Abstract

[Fe6Co3] and [Fe5Co5] superlattices have been studied by CEMS and time dependent nuclear resonance scattering in grazing incidence Bragg reflection geometry. CEMS shows hyperfine fields (B hf) between 33 T and 37 T. The time spectra of reflectivity allows us to separate contributions from different 57Fe monolayers in a bilayer. Contrary to our expectations the largest field is in the center of the Fe layers. The spontaneous orientation of B hf is along [1 1 0] in the layer plane.

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Authors and Affiliations

  1. Department of Physics, Uppsala University, Box 530, 751 21, Uppsala, Sweden

    B. Lindgren, L. Häggström & B. Kalska

  2. Department of Physics, Moscow State University, 117234, Moscow, Russia

    M. Andreeva & B. Kalska

  3. Institute of Chemistry, St. Petersburg State University, 199164, St. Petersburg, Russia

    V. G. Semenov

  4. European Synchrotron Radiation Facility, BP 220, F-38043, Grenoble, France

    A. I. Chumakov & O. Leupold

  5. European Synchrotron Radiation Facility, BP 220, F-38043, Grenoble, France

    R. Rüffer

Authors
  1. B. Lindgren
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  2. M. Andreeva
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  3. L. Häggström
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  4. B. Kalska
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  5. V. G. Semenov
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  6. A. I. Chumakov
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  7. O. Leupold
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  8. R. Rüffer
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Lindgren, B., Andreeva, M., Häggström, L. et al. 57Fe/Co Multilayers Investigated by CEMS and Nuclear Resonance Reflectivity Time Spectra Using Grazing Incident SR. Hyperfine Interactions 136, 439–444 (2001). https://doi.org/10.1023/A:1020541900997

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  • DOI: https://doi.org/10.1023/A:1020541900997

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