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@ARTICLE{Legrand:906411,
author = {Legrand, William and Sassi, Yanis and Ajejas, Fernando and
Collin, Sophie and Bocher, Laura and Jia, Hongying and
Hoffmann, Markus and Zimmermann, Bernd and Blügel, Stefan
and Reyren, Nicolas and Cros, Vincent and Thiaville, André},
title = {{S}patial extent of the {D}zyaloshinskii-{M}oriya
interaction at metallic interfaces},
journal = {Physical review materials},
volume = {6},
number = {2},
issn = {2475-9953},
address = {College Park, MD},
publisher = {APS},
reportid = {FZJ-2022-01425},
pages = {024408},
year = {2022},
abstract = {We experimentally investigate the range of the
Dzyaloshinskii-Moriya interaction (DMI) occurring at
magnetic interfaces within metallic heterostructures. To
this aim we perform Brillouin light scattering spectroscopy
on a set of Co-based, asymmetric metallic heterostructures,
incorporating atomically thin continuous films obtained by
room-temperature sputtering, and of identical orientation
and quality. We thus get access to the intrinsic dependence
of the interfacial DMI and other magnetic interactions on
the thickness of the nonmagnetic layer adjacent to Co, which
is chosen among Pt, Ru, and Au. Notably, we observe that a
robust DMI is already generated by as few as two atomic
planes of Pt and that interfacial DMI can be efficiently
suppressed by a dusting of Ru equivalent to a single atomic
plane coverage. These results point directly towards a
mechanism where DMI is generated within the two first atomic
planes away from the interface, in agreement with
first-principles calculations. This locally generated DMI
is, however, likely to be modulated by more distant atoms in
the case of strain effects. The short-range aspect of the
interfacial DMI opens up the synthesis of dense magnetic
multilayers, allowing for a strong interfacial DMI even with
very thin layers, which can be further tuned by strain
engineering.},
cin = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC},
ddc = {530},
cid = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
$I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
pnm = {5211 - Topological Matter (POF4-521)},
pid = {G:(DE-HGF)POF4-5211},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000761411000001},
doi = {10.1103/PhysRevMaterials.6.024408},
url = {https://juser.fz-juelich.de/record/906411},
}