Surface states and Rashba-type spin polarization in antiferromagnetic MnBi2Te4 (0001)

Vidal, R. C.; Bentmann, H.; Peixoto, T. R.  F.; Zeugner, A.; Moser, S.; Min, C. -H.; Schatz, S.; Kißner, K.; Ünzelmann, M.; Fornari, C. I.; Vasili, H. B.; Valvidares, M.; Sakamoto, K.; Mondal, D.; Fujii, J.; Vobornik, I.; Jung, S.; Cacho, C.; Kim, T. K.; Koch, R. J.; Jozwiak, C.; Bostwick, A.; Denlinger, J. D.; Rotenberg, E.; Buck, J.; Hoesch, M.; Diekmann, F.; Rohlf, S.; Kalläne, M.; Rossnagel, K.; Otrokov, M. M.; Chulkov, E. V.; Ruck, M.; Isaeva, A.; Reinert, F.

doi:10.1103/physrevb.100.121104

Surface states and Rashba-type spin polarization in antiferromagnetic ${MnBi}_{2} {Te}_{4}$ (0001)

Journal Article · Sun Sep 01 04:00:00 EDT 2019 · Physical Review B

DOI:https://doi.org/10.1103/physrevb.100.121104· OSTI ID:1581079

Vidal, R. C.; Bentmann, H.; Peixoto, T. R. F.; Zeugner, A.; Moser, S.; Min, C. -H.; Schatz, S.; Kißner, K.; Ünzelmann, M.; Fornari, C. I.; Vasili, H. B.; Valvidares, M.; Sakamoto, K.; Mondal, D.; Fujii, J.; Vobornik, I.; Jung, S.; Cacho, C.; Kim, T. K.; Koch, R. J. more »

The layered van der Waals antiferromagnet MnBi₂Te₄ has been predicted to combine the band ordering of archetypical topological insulators such as Bi₂Te₃ with the magnetism of Mn, making this material a viable candidate for the realization of various magnetic topological states. We have systematically investigated the surface electronic structure of MnBi₂Te₄(0001) single crystals by use of spin- and angle-resolved photoelectron spectroscopy experiments. In line with theoretical predictions, the results reveal a surface state in the bulk band gap and they provide evidence for the influence of exchange interaction and spin-orbit coupling on the surface electronic structure.

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Scientific User Facilities Division (SC-22.3 )

DOE Contract Number:: AC02-05CH11231

OSTI ID:: 1581079

Journal Information:: Physical Review B, Journal Name: Physical Review B Journal Issue: 12 Vol. 100; ISSN 2469-9950; ISSN PRBMDO

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

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