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Spin polarized neutron reflectivity study of a Co/Cu superlattice

A. Schreyer, Th. Zeidler, Ch. Morawe, N. Metoki, and H. Zabel

Experimentalphysik IV, Ruhr-Universität Bochum W-4630 Bochum 1, Germany

J. F. Ankner and C. F. Majkrzak

National Institute of Standards and Technology Gaithersburg, Maryland 20899

(Received 16 November 1992; accepted 9 February 1993)

We present spin polarized neutron reflectivity data on a Co/Cu(111) superlattice and show how not only the magnitude but also the orientation of the average magnetic moment of each layer can be extracted by analyzing the polarization of the reflected beam. This method allows more detailed conclusions about the exchange coupling of magnetic layers across nonmagnetic interlayers and the magnetic in-plane anisotropy in such systems. We present a theoretical fit to the spin-flip and non-spin-flip data which leads to quantitative conclusions about the spin structure. These spin polarized neutron reflectivity results coincide well with the macroscopic magnetic properties which were measured using the magneto-optic Kerr effect revealing a newly discovered uniaxial anisotropy in this system. Journal of Applied Physics is copyrighted by The American Institute of Physics.

doi:10.1063/1.353958
PACS: 75.70.Fr, 75.50.Rr, 61.12.-q        Additional Information

Citing Articles

1. A neutron study of magnetic domain correlations in antiferromagnetically coupled multilayers
   S. Langridge et al., J. Appl. Phys. 87, 5750 (2000)

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