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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},
}