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@ARTICLE{Bommanaboyena:903046,
author = {Bommanaboyena, S. P. and Backes, D. and Veiga, L. S. I. and
Dhesi, S. S. and Niu, Y. R. and Sarpi, B. and Denneulin, T.
and Kovács, A. and Mashoff, T. and Gomonay, O. and Sinova,
J. and Everschor-Sitte, K. and Schönke, D. and Reeve, R. M.
and Kläui, M. and Elmers, H.-J. and Jourdan, M.},
title = {{R}eadout of an antiferromagnetic spintronics system by
strong exchange coupling of {M}n2{A}u and {P}ermalloy},
journal = {Nature Communications},
volume = {12},
number = {1},
issn = {2041-1723},
address = {[London]},
publisher = {Nature Publishing Group UK},
reportid = {FZJ-2021-04775},
pages = {6539},
year = {2021},
abstract = {In antiferromagnetic spintronics, the read-out of the
staggered magnetization or Néel vector is the key obstacle
to harnessing the ultra-fast dynamics and stability of
antiferromagnets for novel devices. Here, we demonstrate
strong exchange coupling of Mn2Au, a unique metallic
antiferromagnet that exhibits Néel spin-orbit torques, with
thin ferromagnetic Permalloy layers. This allows us to
benefit from the well-established read-out methods of
ferromagnets, while the essential advantages of
antiferromagnetic spintronics are only slightly diminished.
We show one-to-one imprinting of the antiferromagnetic on
the ferromagnetic domain pattern. Conversely, alignment of
the Permalloy magnetization reorients the Mn2Au Néel
vector, an effect, which can be restricted to large magnetic
fields by tuning the ferromagnetic layer thickness. To
understand the origin of the strong coupling, we carry out
high resolution electron microscopy imaging and we find that
our growth yields an interface with a well-defined
morphology that leads to the strong exchange coupling.},
cin = {ER-C-1},
ddc = {500},
cid = {I:(DE-Juel1)ER-C-1-20170209},
pnm = {5351 - Platform for Correlative, In Situ and Operando
Characterization (POF4-535) / 3D MAGiC - Three-dimensional
magnetization textures: Discovery and control on the
nanoscale (856538)},
pid = {G:(DE-HGF)POF4-5351 / G:(EU-Grant)856538},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:34764314},
UT = {WOS:000717958200013},
doi = {10.1038/s41467-021-26892-7},
url = {https://juser.fz-juelich.de/record/903046},
}