%0 Journal Article
%A Paul, Amitesh
%A Paul, N.
%A Mattauch, Stefan
%T Magnetization reversal and domain correlation for a non-collinear and out-of-plane exchange-coupled system
%J New journal of physics
%V 13
%N 6
%@ 1367-2630
%C [Bad Honnef]
%I Dt. Physikalische Ges.
%M FZJ-2015-03390
%P 063008
%D 2011
%X We have investigated the impact of out-of-plane ferromagnetic (FM) anisotropy (which can be coincident with the direction of unidirectional anisotropy), where antiferromagnetic (AF) anisotropy is along the film plane. This provides a platform for non-collinear exchange coupling in an archetypal exchange coupled system in an unconventional way. We probe the in-plane magnetization by the depth-sensitive vector magnetometry technique. The experimental findings reveal a magnetization reversal (i) that is symmetric for both the branches of the hysteresis loop, (ii) that is characterized by vertically correlated domains associated with a strong transverse component of magnetization and (iii) that remains untrained (suppression of trained state) with field cycling. This scenario has been compared with in-plane magnetization reversal for a conventional in-plane unidirectional anisotropic case in the same system that shows usual asymmetric reversal and training for vertically uncorrelated domains. We explain the above observations for the out-of-plane case in terms of inhomogeneous magnetic states due to competing perpendicular anisotropies that result in non-collinear FM–AF coupling. This study provides direct evidence for the vertical correlation of domains mediated by out-of-plane exchange coupling
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000292139000001
%R 10.1088/1367-2630/13/6/063008
%U https://juser.fz-juelich.de/record/201080