Coupling interaction in FeBSi/Si and FeBSi/Pt multilayered structure

An effective coupling field between ferromagnetic sublayers was found as a function of thickness t of the non-magnetic medium in the multilayered structure of FeBSi/Si and FeBSi/Pt. The surface energy anisotropy constant was also determined for FeBSi/Pt films. We used ferromagnetic resonance and spi...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 1991-02, Vol.93, p.435-438
Main Authors: Maksymowicz, L.J., Jankowski, H., Maksymowicz, A.Z., Żuberek, R.
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Magnetic properties and materials
Magnetic properties of surface, thin films and multilayers
Metals. Metallurgy
Physics
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Summary:An effective coupling field between ferromagnetic sublayers was found as a function of thickness t of the non-magnetic medium in the multilayered structure of FeBSi/Si and FeBSi/Pt. The surface energy anisotropy constant was also determined for FeBSi/Pt films. We used ferromagnetic resonance and spin wave resonance at room temperature for studying the properties of the multilayered structure of metallic glasses of FeBSi separated by Si or Pt. Thin films were obtained by rf sputtering technique. Additional anisotropy field of the effective coupling is of easy-plane type in case of Si as the non-magnetic medium for t greater than 1.5 nm. For Pt, the effective field exhibits an easy-axis anisotropy along the film normal. The surface anisotropy constant varies from sample to sample in the range from 0.2 to 0.6 erg/cm 2. We also observed a weak t-dependence of the surface anisotropy field.
ISSN:0304-8853
DOI:10.1016/0304-8853(91)90378-N