Spin-resolved photoemission and ab initio theory of graphene/SiC

@article{Marchenko2013SpinresolvedPA,
  title={Spin-resolved photoemission and ab initio theory of graphene/SiC},
  author={Dmitry Marchenko and Andrei Varykhalov and Markus R Scholz and Jaime S{\'a}nchez-Barriga and Oliver Rader and A. A. Rybkina and Alexander M. Shikin and Thomas Seyller and Gustav Bihlmayer},
  journal={Physical Review B},
  year={2013},
  volume={88},
  pages={075422}
}
The spin-orbit splitting of grapheneπ states can be strongly enhanced by external influences such as corrugation or proximity to heavier atoms. Here we investigate experimentally and theoretically whether such strong enhancement is possible for graphene on SiC(0001). By spinand angle-resolved photoemission we found for two independently grown samples no resolvable spin-orbit splitting with an upper limit of our analysis of 20 meV. Our ab initio calculations predict a low spin-orbit splitting of… 
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