% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Niu:873882,
author = {Niu, Chengwang and Mao, Ning and Huang, Baibiao and
Mokrousov, Yuriy and Dai, Ying},
title = {{A}ntiferromagnetic {T}opological {I}nsulator with
{N}onsymmorphic {P}rotection in {T}wo {D}imensions},
journal = {Physical review letters},
volume = {124},
number = {6},
issn = {1079-7114},
address = {College Park, Md.},
publisher = {APS},
reportid = {FZJ-2020-01072},
pages = {066401},
year = {2020},
abstract = {The recent demonstration of topological states in
antiferromagnets (AFMs) provides an exciting platform for
exploring prominent physical phenomena and applications of
antiferromagnetic spintronics. A famous example is the AFM
topological insulator (TI) state, which, however, was still
not observed in two dimensions. Using a tight-binding model
and first-principles calculations, we show that, in contrast
to previously observed AFM topological insulators in three
dimensions, an AFM TI can emerge in two dimensions as a
result of a nonsymmorphic symmetry that combines the twofold
rotation symmetry and half-lattice translation. Based on the
spin Chern number, Wannier charge centers, and gapless edge
states analysis, we identify intrinsic AFM XMnY (X=Sr and
Ba, Y=Sn and Pb) quintuple layers as experimentally feasible
examples of predicted topological states with a stable
crystal structure and giant magnitude of the nontrivial band
gaps, reaching as much as 186 meV for SrMnPb, thereby
promoting these systems as promising candidates for
innovative spintronics applications.},
cin = {PGI-1 / IAS-1 / JARA-FIT / JARA-HPC},
ddc = {530},
cid = {I:(DE-Juel1)PGI-1-20110106 / I:(DE-Juel1)IAS-1-20090406 /
$I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
pnm = {142 - Controlling Spin-Based Phenomena (POF3-142) /
Topological transport in real materials from ab initio
$(jiff40_20190501)$},
pid = {G:(DE-HGF)POF3-142 / $G:(DE-Juel1)jiff40_20190501$},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:32109083},
UT = {WOS:000513240600008},
doi = {10.1103/PhysRevLett.124.066401},
url = {https://juser.fz-juelich.de/record/873882},
}