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@ARTICLE{Ye:865324,
author = {Ye, Jingfan and Baldauf, Thomas and Mattauch, Stefan and
Paul, Neelima and Paul, Amitesh},
title = {{T}opologically stable helices in exchange coupled
rare-earth/rare-earth multilayer with superspin-glass like
ordering},
journal = {Communications Physics},
volume = {2},
number = {1},
issn = {2399-3650},
address = {London},
publisher = {Springer Nature},
reportid = {FZJ-2019-04826},
pages = {114},
year = {2019},
abstract = {Existence of 2π-planar domain walls (DWs) are often
reported for transition metal-rare-earth(TM/RE) layered
systems. The magnetization process of such two-dimensional
randomlyanisotropical system in the form of 2π-DWs is
directly correlated with topologically stablehelices. Here,
instead of TM/RE, we have investigated [Dy/Tb]10multilayers
involving twodifferent anisotropic layers of
rare-earth/rare-earth (RE/RE). Using magnetization and
sus-ceptibility as function of temperature along with
thermo-remanent magnetization measure-ments we have
confirmed superspin-glass type of behavior within this RE/RE
system.Additionally, an exchange biasfield up to–0.88 kOe
(–88 mT) was also revealed for suchrare-earth based
multilayers. Interestingly, using detailed analysis of the
polarized neutronreflectometry profiles, wefind evidences of
superimposed helical magnetic configurationswithin both
materials of Dy and Tb associated with spin-frustrated
interfaces. Furthermore,magnetizationfluctuations around the
mean magnetization from vertically uncorrelateddomains were
observed with polarized off-specular neutron scattering. We
believe that coexistence of helical ground states with super
spin-glass-like ordering are fundamentally instrumental for
topologically stability in RE/RE systems, which in
principle, can be exploited in all-spin-based technology.},
cin = {JCNS-FRM-II / JCNS-2 / MLZ},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-2-20110106 / I:(DE-588b)4597118-3},
pnm = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
Neutron Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)MARIA-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000486690700001},
doi = {10.1038/s42005-019-0210-0},
url = {https://juser.fz-juelich.de/record/865324},
}