Title: Štúdium neobsadených statvov a ich spinovej textúry v Bi2Se3
Unraveling the spin structure of unoccupied states in Bi2Se3
Authors: Datzer, Christian
Zumbülte, Anna
Braun, Jürgen
Förster, Tobias
Schmidt, Anke B.
Mi, Jianli
Iversen, Bo Brummerstedt
Hofmann, Philip
Minár, Jan
Ebert, Hubert
Krüger, Peter
Rohlfing, Michael
Donath, Markus
Citation: DATZER, C., ZUMBÜLTE, A., BRAUN, J., FÖRSTER, T., SCHMIDT, A. B., MI, J., IVERSEN, B. B., HOFMANN, P., MINÁR, J., EBERT, H., KRÜGER, P., ROHLFING, M., DONATH, M. Unraveling the spin structure of unoccupied states in Bi2Se3. Physical Review B, 2017, roč. 95, č. 11. ISSN 2469-9950.
Issue Date: 2017
Publisher: American Physical Society
Document type: článek
URI: http://hdl.handle.net/11025/29236
ISSN: 2469-9950
Keywords: IPE, jednokrokový model fotoemisie, topologicke izolátory
Keywords in different language: IPE, one step model of photoemission, topological insulators
Abstract: Optická kontrola spinových prúdov v topologických izolátoroch je nová možnosť v spintronike. Na porozumenie týchto procesov je nutné zistiť elektrónovú štruktúru nad fermiho hladinou za použitia jednokrokového modelu a inverznej ARPES techniky
Abstract in different language: The optical control of spin currents in topological surface states opens new perspectives in (opto-) spintronics. To understand these processes, a profound knowledge about the dispersion and the spin polarization of both the occupied and the unoccupied electronic states is required. We present a joint experimental and theoretical study on the unoccupied electronic states of the topological insulator Bi2Se3 . We discuss spin- and angle-resolved inverse-photoemission results in comparison with calculations for both the intrinsic band structure and, within the one-step model of (inverse) photoemission, the expected spectral intensities. This allows us to unravel the intrinsic spin texture of the unoccupied bands at the surface of Bi2 Se3.
Rights: © American Physical Society
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