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@ARTICLE{Vidal:903035,
author = {Vidal, R. C. and Bentmann, H. and Facio, J. I. and Heider,
Tristan and Kagerer, P. and Fornari, C. I. and Peixoto, T.
R. F. and Figgemeier, T. and Jung, S. and Cacho, C. and
Büchner, B. and van den Brink, J. and Schneider, C. M. and
Plucinski, L. and Schwier, E. F. and Shimada, K. and
Richter, M. and Isaeva, A. and Reinert, F.},
title = {{O}rbital {C}omplexity in {I}ntrinsic {M}agnetic
{T}opological {I}nsulators {M}n{B}i 4 {T}e 7 and {M}n{B}i 6
{T}e 10},
journal = {Physical review letters},
volume = {126},
number = {17},
issn = {0031-9007},
address = {College Park, Md.},
publisher = {APS},
reportid = {FZJ-2021-04764},
pages = {176403},
year = {2021},
abstract = {Using angle-resolved photoelectron spectroscopy (ARPES), we
investigate the surface electronic structure of the magnetic
van der Waals compounds MnBi4Te7 and MnBi6Te10, the n=1 and
2 members of a modular (Bi2Te3)n(MnBi2Te4) series, which
have attracted recent interest as intrinsic magnetic
topological insulators. Combining circular dichroic,
spin-resolved and photon-energy-dependent ARPES measurements
with calculations based on density functional theory, we
unveil complex momentum-dependent orbital and spin textures
in the surface electronic structure and disentangle
topological from trivial surface bands. We find that the
Dirac-cone dispersion of the topologial surface state is
strongly perturbed by hybridization with valence-band states
for Bi2Te3-terminated surfaces but remains preserved for
MnBi2Te4-terminated surfaces. Our results firmly establish
the topologically nontrivial nature of these magnetic van
der Waals materials and indicate that the possibility of
realizing a quantized anomalous Hall conductivity depends on
surface termination.},
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},
pubmed = {pmid:33988442},
UT = {WOS:000652836500011},
doi = {10.1103/PhysRevLett.126.176403},
url = {https://juser.fz-juelich.de/record/903035},
}