Forschungszentrum Jülich
Institut für Festkörperforschung

Layered magnetic structures: twisted ground state due to strong antiferromagnetic coupling
linie570

M. Buchmeier, R. Gareev, D. E. Bürgler and P. Grünberg
Institute "Electronic Properties"

We have investigated the remagnetization behavior of ferromagnetic doublelayers with strong an-tiferromagnetic interlayer exchange coupling. If the coupling and external field are strong enough a partial Bloch-type domain wall parallel to the interface will form inside the ferromagnetic layers. This twisted groundstate has to be taken into account when extracting the coupling constants from hysteresis loops. Comparing experimental Magneto-Optic-Kerr-Effect (MOKE) and Brillouin Light Scattering (BLS) data obtained from strongly coupled Fe/Si/Fe Samples with a model calculation we find strong evidence for the twisted state.


 

unten

© Forschungszentrum JülichOnline 2003
Alle Rechte vorbehalten