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@ARTICLE{Chowdhury:873992,
author = {Chowdhury, N. and Bedanta, S. and Babu, G. S. and Weber,
Alexander and Mattauch, S. and Rath, Ashutosh and Dalai, M.
K. and Brückel, Thomas},
title = {{E}ffect of random anisotropy on magnetization reversal in
dipolarly coupled layered thin films},
journal = {Journal of magnetism and magnetic materials},
volume = {503},
issn = {0304-8853},
address = {Amsterdam},
publisher = {North-Holland Publ. Co.},
reportid = {FZJ-2020-01154},
pages = {166611 -},
year = {2020},
abstract = {Magnetic thin films and multilayers offer many novel
physical phenomena with tremendous potential for
applications. Various growth processes and methods are in
place to make homogeneous films. However, dispersion in
local easy axes is an inherent issue which may give rise to
an effective random anisotropy in thin film. It is important
to investigate the effect of random anisotropy on the
magnetic properties of the thin films. In this report we
address the aspect of local dispersion induced random
anisotropy on magnetization reversal in ferromagnetic
(FM)/non-magnetic(NM)/ferromagnetic(FM) stacks. We show that
the magnetization reversal is not only governed by the
inter-layer interaction but the intrinsic anisotropies also
play a crucial role. In this context we have studied the
magnetization reversal of Co//Co trilayers with various
thicknesses of which acts as a spacer between the two Co
layers. Presence of random anisotropy in addition to growth
induced uniaxial anisotropy was observed in all the samples.
Magneto-optic Kerr effect (MOKE) based microscopy revealed
dipolar-coupled layer-by-layer magnetization reversal of the
Co layers which was corroborated by polarized neutron
reflectometry (PNR) experiments. Micromagnetic simulations
confirmed that the presence of random anisotropy in addition
to uniaxial anisotropy leads to layer-by-layer magnetization
reversal.},
cin = {JCNS-2 / PGI-4 / JARA-FIT / JCNS-FRM-II},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
$I:(DE-82)080009_20140620$ /
I:(DE-Juel1)JCNS-FRM-II-20110218},
pnm = {144 - Controlling Collective States (POF3-144) / 524 -
Controlling Collective States (POF3-524) / 6212 - Quantum
Condensed Matter: Magnetism, Superconductivity (POF3-621) /
6213 - Materials and Processes for Energy and Transport
Technologies (POF3-621) / 6G4 - Jülich Centre for Neutron
Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-524 /
G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6213 /
G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)TREFF-20140101 / EXP:(DE-MLZ)MARIA-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000521824800026},
doi = {10.1016/j.jmmm.2020.166611},
url = {https://juser.fz-juelich.de/record/873992},
}