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Decoupling of graphene from Ni(111) via formation of an interfacial NiO layer

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2017

Autor:innen

Klesse, Wolfgang
Becker, Andreas
Späth, Florian
Papp, Christian
Voloshina, Elena

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https://doi.org/10.1016/j.carbon.2017.05.068
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http://arxiv.org/abs/1702.02351

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Carbon. 2017, 121, pp. 10-16. ISSN 0008-6223. eISSN 1873-3891. Available under: doi: 10.1016/j.carbon.2017.05.068

Zusammenfassung

The combination of the surface science techniques (STM, XPS, ARPES) and density-functional theory calculations was used to study the decoupling of graphene from Ni(111) by oxygen intercalation. The formation of the antiferromagnetic (AFM) NiO layer at the interface between graphene and ferromagnetic (FM) Ni is found, where graphene protects the underlying AFM/FM sandwich system. It is found that graphene is fully decoupled in this system and strongly $p$-doped via charge transfer with a position of the Dirac point of $(0.69\pm0.02)$ eV above the Fermi level. Our theoretical analysis confirms all experimental findings, addressing also the interface properties between graphene and AFM NiO.

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530 Physik

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Graphene, Intercalation, STM, XPS, ARPES, DFT

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ISO 690DEDKOV, Yuriy S., Wolfgang KLESSE, Andreas BECKER, Florian SPÄTH, Christian PAPP, Elena VOLOSHINA, 2017. Decoupling of graphene from Ni(111) via formation of an interfacial NiO layer. In: Carbon. 2017, 121, pp. 10-16. ISSN 0008-6223. eISSN 1873-3891. Available under: doi: 10.1016/j.carbon.2017.05.068
BibTex
@article{Dedkov2017-02-08T10:07:41ZDecou-39664,
  year={2017},
  doi={10.1016/j.carbon.2017.05.068},
  title={Decoupling of graphene from Ni(111) via formation of an interfacial NiO layer},
  volume={121},
  issn={0008-6223},
  journal={Carbon},
  pages={10--16},
  author={Dedkov, Yuriy S. and Klesse, Wolfgang and Becker, Andreas and Späth, Florian and Papp, Christian and Voloshina, Elena}
}
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