%0 Journal Article
%A Mathias, S.
%A Ruffing, A.
%A Deicke, F.
%A Wiesenmayer, M.
%A Sakar, I.
%A Bihlmayer, G.
%A Chulkov, E. V.
%A Koroteev, Yu. M.
%A Echenique, P. M.
%A Bauer, M.
%A Aeschlimann, M.
%T Quantum-well induced giant spin-orbit splitting
%J Physical review letters
%V 104
%@ 0031-9007
%C College Park, Md.
%I APS
%M PreJuSER-8721
%P 066802
%D 2010
%Z This work was supported by the DFG GRK 792 and the DFG SFB/TRR49, the UPV/EHU (Grant No. GIC07IT36607), the Departamento de Educacion del Gobierno Vasco, and the Spanish MCyT (Grant No. FIS200766711C0101).
%X We report on the observation of a giant spin-orbit splitting of quantum-well states in the unoccupied electronic structure of a Bi monolayer on Cu(111). Up to now, Rashba-type splittings of this size have been reported exclusively for surface states in a partial band gap. With these quantum-well states we have experimentally identified a second class of states that show a huge spin-orbit splitting. First-principles electronic structure calculations show that the origin of the spin-orbit splitting is due to the perpendicular potential at the surface and interface of the ultrathin Bi film. This finding allows for the direct possibility to tailor spin-orbit splitting by means of thin-film nanofabrication.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000274445100039
%R 10.1103/PhysRevLett.104.066802
%U https://juser.fz-juelich.de/record/8721