Soft X-ray resonant magnetic scattering from magnetic multilayers showing a field induced transition from weak to strong ferromagnetic coupling

摘要: As for sputter deposited multilayers (Ni{sub 80}Fe{sub 20}/Au/Co/Au){sub 10} with alternating out-of-plane (Co) and in-plane (NiFe) magnetization anisotropy and negligible exchange coupling we found a stripe domain structure in remanence due to a specific magnetostatic coupling. We present first results of several complementary studies, e.g. element specific soft X-ray resonant magnetic scattering (SXRMS) hysteresis measurements, which indicate, that the reversal of the NiFe magnetization is strongly affected by magnetostatic coupling due to domain stray fields. We discuss the behaviour of this magnetostatic coupling in dependence of the Co thickness in these multilayers.