Journal Article

PreJuSER-20074

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Ir(111) Surface State with Giant Rashba Splitting Persists under Graphene in Air

Varykhalov, A. ; Marchenko, D. ; Scholz, M. R. ; Rienks, E. D. L. ; Kim, T. K. ; Bihlmayer, G.FZJ* ; Sánchez-Barriga, J. ; Rader, O.

2012
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/7422  doi:10.1103/PhysRevLett.108.066804

Abstract: We reveal a giant Rashba effect (alpha(R) approximate to 1.3 eV angstrom) on a surface state of Ir(111) by angle-resolved photoemission and by density functional theory. It is demonstrated that the existence of the surface state, its spin polarization, and the size of its Rashba-type spin-orbit splitting remain unaffected when Ir is covered with graphene. The graphene protection is, in turn, sufficient for the spin-split surface state to survive in ambient atmosphere. We discuss this result along with indications for a topological protection of the surface state.

Keyword(s): J

Note: This work was supported by SPP 1459 of the Deutsche Forschungsgemeinschaft.

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (PGI-1)
2. Quanten-Theorie der Materialien (IAS-1)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2012

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Database coverage:
; ; ; Current Contents - Social and Behavioral Sciences ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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