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001     20074
005     20200423203159.0
024 7 _ |2 DOI
|a 10.1103/PhysRevLett.108.066804
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041 _ _ |a eng
082 _ _ |a 550
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|a Physics, Multidisciplinary
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|a Varykhalov, A.
|b 0
245 _ _ |a Ir(111) Surface State with Giant Rashba Splitting Persists under Graphene in Air
260 _ _ |a College Park, Md.
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|c 2012
300 _ _ |a 066804
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440 _ 0 |0 4925
|a Physical Review Letters
|v 108
|x 0031-9007
|y 6
500 _ _ |3 POF3_Assignment on 2016-02-29
500 _ _ |a This work was supported by SPP 1459 of the Deutsche Forschungsgemeinschaft.
520 _ _ |a 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.
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856 7 _ |u http://dx.doi.org/10.1103/PhysRevLett.108.066804
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