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                    Phys. Rev. B 54, 11903–11906 (1996)

                       [Issue 17 – 1 November 1996 ]

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Spin-wave hybridization and magnetic anisotropies in a thick bcc cobalt
film

     X. Liu, R. L. Stamps, and R. Sooryakumar
     Department of Physics, The Ohio State University, Columbus, Ohio 43210

     G. A. Prinz
     Naval Research Laboratory, Washington, D.C. 20375

Received 13 March 1996

Magnetic anisotropies of a 357 Å thick Co film were examined using
Brillouin light scattering. The Co has bcc structure, and was found to have
a significant fourfold anisotropy in addition to a strong uniaxial
anisotropy. This film is one of the thickest bcc Co structures and we find
that the surface and n=1 bulk spin waves have comparable frequencies and
are strongly mixed. Unusual behavior of the scattering intensities suggest
the possible presence of inhomogeneous internal fields that result in a
different dependence for the bulk mode frequencies on field orientation
than for the surface mode.

©1996 The American Physical Society

URL: http://link.aps.org/abstract/PRB/v54/p11903
DOI: 10.1103/PhysRevB.54.11903
PACS: 62.20.Dc, 78.35.+c, 75.30.Ds
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