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Investigation of Anisotropy Effects and Interlayer Exchange Coupling by Locally Resolved Photothermally Modulated Ferromagnetic Resonance

Published online by Cambridge University Press:  15 February 2011

R. Meckenstock
Affiliation:
Institut für Experimentalphysik, Ag. Festkörperspektroskopie, Ruhr-Universität-Bochum, 44780 Bochum, Germany
J. Pelzl
Affiliation:
Institut für Experimentalphysik, Ag. Festkörperspektroskopie, Ruhr-Universität-Bochum, 44780 Bochum, Germany
Z. Frait
Affiliation:
Institute of Physics, Prague, Czech Republic
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Abstract

The photothermally modulated ferromagnetic resonance (PM-FMR) has been successfully applied to investigate the position dependence of FMR properties of wedged Fe-samples. The temperature dependence of the surface contribution to the anisotropy could be separated from the demagnetizing field with high accuracy. The oscillating first order interlayer exchange coupling and the anisotropy fields of the Fe-films of a Fe/Cr-wedge/Fe-sample (3.0/0.7–2.8/2.0 nm) were deduced from PM-FMR spectra.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

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References

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