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@ARTICLE{Deng:889312,
author = {Deng, Haiming and Chen, Zhiyi and Wołoś, Agnieszka and
Konczykowski, Marcin and Sobczak, Kamil and Sitnicka, Joanna
and Fedorchenko, Irina V. and Borysiuk, Jolanta and Heider,
Tristan and Pluciński, Łukasz and Park, Kyungwha and
Georgescu, Alexandru B. and Cano, Jennifer and
Krusin-Elbaum, Lia},
title = {{H}igh-temperature quantum anomalous {H}all regime in a
{M}n{B}i2{T}e4/{B}i2{T}e3 superlattice},
journal = {Nature physics},
volume = {17},
number = {1},
issn = {1745-2481},
address = {Basingstoke},
publisher = {Nature Publishing Group},
reportid = {FZJ-2021-00204},
pages = {36 - 42},
year = {2021},
abstract = {The quantum anomalous Hall effect1,2 is a fundamental
transport response of a topological insulator in zero
magnetic field. Its physical origin is a result of an
intrinsically inverted electronic band structure and
ferromagnetism3, and its most important manifestation is the
dissipationless flow of chiral charge currents at the edges
of the system4, a property that has the potential to
transform future quantum electronics5,6. Here, we report a
Berry-curvature-driven4,7 anomalous Hall regime at
temperatures of several Kelvin in the magnetic topological
bulk crystals in which Mn ions self-organize into a
period-ordered MnBi2Te4/Bi2Te3 superlattice. Robust
ferromagnetism of the MnBi2Te4 monolayers opens a surface
gap8,9,10, and when the Fermi level is tuned to be within
this gap, the anomalous Hall conductance reaches an e2/h
quantization plateau, which is a clear indication of chiral
transport through the edge states. The quantization in this
regime is not obstructed by the bulk conduction channels and
therefore should be present in a broad family of topological
magnets.},
cin = {PGI-6},
ddc = {530},
cid = {I:(DE-Juel1)PGI-6-20110106},
pnm = {5211 - Topological Matter (POF4-521)},
pid = {G:(DE-HGF)POF4-5211},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000560934900007},
doi = {10.1038/s41567-020-0998-2},
url = {https://juser.fz-juelich.de/record/889312},
}