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@ARTICLE{Bac:910511,
author = {Bac, S.-K. and Koller, K. and Lux, Fabian and Wang, J. and
Riney, L. and Borisiak, K. and Powers, W. and Zhukovskyi, M.
and Orlova, T. and Dobrowolska, M. and Furdyna, J. K. and
Dilley, N. R. and Rokhinson, L. P. and Mokrousov, Y. and
McQueeney, R. J. and Heinonen, O. and Liu, X. and Assaf, B.
A.},
title = {{T}opological response of the anomalous {H}all effect in
{M}n{B}i2{T}e4 due to magnetic canting},
journal = {npj quantum materials},
volume = {7},
number = {1},
issn = {2397-4648},
address = {[London]},
publisher = {Nature Publishing Group},
reportid = {FZJ-2022-03894},
pages = {46},
year = {2022},
abstract = {Three-dimensional (3D) compensated MnBi2Te4 is
antiferromagnetic, but undergoes a spin-flop transition at
intermediate fields, resulting in a canted phase before
saturation. In this work, we experimentally show that the
anomalous Hall effect (AHE) in MnBi2Te4 originates from a
topological response that is sensitive to the perpendicular
magnetic moment and to its canting angle. Synthesis by
molecular beam epitaxy allows us to obtain a large-area
quasi-3D 24-layer MnBi2Te4 with near-perfect compensation
that hosts the phase diagram observed in bulk which we
utilize to probe the AHE. This AHE is seen to exhibit an
antiferromagnetic response at low magnetic fields, and a
clear evolution at intermediate fields through surface and
bulk spin-flop transitions into saturation. Throughout this
evolution, the AHE is super-linear versus magnetization
rather than the expected linear relationship. We reveal that
this discrepancy is related to the canting angle, consistent
with the symmetry of the crystal. Our findings bring to
light a topological anomalous Hall response that can be
found in non-collinear ferromagnetic, and antiferromagnetic
phases.},
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:000786468000002},
doi = {10.1038/s41535-022-00455-5},
url = {https://juser.fz-juelich.de/record/910511},
}