Year: 2019
Type: article
Abstract: The layered van der Waals antiferromagnet MnBi${}_{2}$Te${}_{4}$ has been predicted previously to realize the first intrinsic magnetic topological insulator. Here, the authors report spin- and angle-resolved photoemission experiments for the MnBi${}_{2}$Te${}_{4}$(0001) surface, revealing a surface state in the bulk band gap and providing evidence for the interplay between magnetic exchange interaction and spin-orbit coupling in the surface electronic structure. MnBi${}_{2}$Te${}_{4}$ thus constitutes a promising candidate to exploit the interplay of topological states and magnetic order in spintronic device concepts.
Authors: R. C. Vidal, H. Bentmann, T. R. F. Peixoto, A. Zeugner, S. Moser, C.-H. Min, S. Schatz, K. Kißner, M. Ünzelmann, C. I. Fornari, H. B. Vasili, M. Valvidares, K. Sakamoto, D. Mondal, J. Fujii, I. Vobornik, S. Jung, C. Cacho, T. K. Kim, R. J. Koch, C. Jozwiak, A. Bostwick, J. D. Denlinger, E. Rotenberg, J. Buck, M. Hoesch, F. Diekmann, S. Rohlf, M. Kalläne, K. Rossnagel, M. M. Otrokov, E. V. Chulkov, M. Ruck, A. Isaeva, F. Reinert
Institutions: University of Würzburg, Complexity, Topology and Dynamics in Quantum Matter, Technische Universität Dresden, Lawrence Berkeley National Laboratory, Advanced Light Source, ALBA Synchrotron (Spain), The University of Osaka, The Abdus Salam International Centre for Theoretical Physics (ICTP), Istituto Officina dei Materiali, National Research Council, Diamond Light Source, Deutsches Elektronen-Synchrotron DESY, Christian-Albrechts-Universität zu Kiel, Ikerbasque, University of the Basque Country, Material Physics Center, Donostia International Physics Center, St Petersburg University, National Research Tomsk State University, Leibniz Institute for Solid State and Materials Research
Language: Latvian
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, U.S. Department of Energy, Diamond Light Source, Deutsche Forschungsgemeinschaft, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Russian Foundation for Basic Research, Ministerio de Economía y Competitividad, Ministero dell’Istruzione, dell’Università e della Ricerca, Saint Petersburg State University, Tomsk State University, Office of Science, Deutsches Elektronen-Synchrotron, Japan Society for the Promotion of Science
Awards: G1084295969, G1286236842, G1682778145, G1758916185, G1863003419, G2152757567, G2158694287, G2517729222, G2956393544, G3083819904, G3685081974, Controlling the local electronic state by photo-induced doping; creation of topological pn junction, G4117425174, G4151545877, G419881185, G42916606, G4501827968, G4725523307, G4839152072, G498139845, G5059713498, G524623058, G5581899924, G6561026727, G7355394185, Mapping the electronic structure of transition metal oxides at the nanoscale: a spectroscopic study at MAESTRO in Berkeley: part II, G8901051826, G936330020, G969889393
OpenAlex ID: W2972508377