Intercalation of metal islands and films at the interface of epitaxially grown graphene and Ru(0001) surfaces

Li Huang; Yi Pan; Lida Pan; Min Gao; Wenyan Xu; Yande Que; Haitao Zhou; Yeliang Wang; Shixuan Du; H. J. Gao

doi:10.1063/1.3653241

Intercalation of metal islands and films at the interface of epitaxially grown graphene and Ru(0001) surfaces

Li Huang^*, Yi Pan, Lida Pan, Min Gao, Wenyan Xu, Yande Que, Haitao Zhou, Yeliang Wang, Shixuan Du, H. J. Gao

^*Corresponding author for this work

CAS - Institute of Physics

Research output: Contribution to journal › Article › peer-review

85 Citations (Scopus)

Abstract

We report on intercalation of seven kinds of metals-Pt, Pd, Ni, Co, Au, In, and Ce-at the interface between an epitaxially grown graphene layer and a Ru(0001) substrate. Atomic resolution scanning tunneling microscopy images of perfect graphene lattice are obtained on top of these intercalated metals, showing that the high quality of the original graphene is, in the end, undisturbed by the intercalation. A model based theoretical calculation is proposed for the intercalation mechanism: metal atom-aided defect formation and self-healing of C-C bonds at high temperature. These intercalated materials include noble metals, magnetic metals, a IIIA group metal, and a rare earth metal, which indicates that intercalation through epitaxial graphene on Ru(0001) is a universal approach for metals.

Original language	English
Article number	163107
Journal	Applied Physics Letters
Volume	99
Issue number	16
DOIs	https://doi.org/10.1063/1.3653241
Publication status	Published - 17 Oct 2011
Externally published	Yes

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title = "Intercalation of metal islands and films at the interface of epitaxially grown graphene and Ru(0001) surfaces",

abstract = "We report on intercalation of seven kinds of metals-Pt, Pd, Ni, Co, Au, In, and Ce-at the interface between an epitaxially grown graphene layer and a Ru(0001) substrate. Atomic resolution scanning tunneling microscopy images of perfect graphene lattice are obtained on top of these intercalated metals, showing that the high quality of the original graphene is, in the end, undisturbed by the intercalation. A model based theoretical calculation is proposed for the intercalation mechanism: metal atom-aided defect formation and self-healing of C-C bonds at high temperature. These intercalated materials include noble metals, magnetic metals, a IIIA group metal, and a rare earth metal, which indicates that intercalation through epitaxial graphene on Ru(0001) is a universal approach for metals.",

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T1 - Intercalation of metal islands and films at the interface of epitaxially grown graphene and Ru(0001) surfaces

AU - Huang, Li

AU - Pan, Yi

AU - Pan, Lida

AU - Gao, Min

AU - Xu, Wenyan

AU - Que, Yande

AU - Zhou, Haitao

AU - Wang, Yeliang

AU - Du, Shixuan

AU - Gao, H. J.

PY - 2011/10/17

Y1 - 2011/10/17

N2 - We report on intercalation of seven kinds of metals-Pt, Pd, Ni, Co, Au, In, and Ce-at the interface between an epitaxially grown graphene layer and a Ru(0001) substrate. Atomic resolution scanning tunneling microscopy images of perfect graphene lattice are obtained on top of these intercalated metals, showing that the high quality of the original graphene is, in the end, undisturbed by the intercalation. A model based theoretical calculation is proposed for the intercalation mechanism: metal atom-aided defect formation and self-healing of C-C bonds at high temperature. These intercalated materials include noble metals, magnetic metals, a IIIA group metal, and a rare earth metal, which indicates that intercalation through epitaxial graphene on Ru(0001) is a universal approach for metals.

AB - We report on intercalation of seven kinds of metals-Pt, Pd, Ni, Co, Au, In, and Ce-at the interface between an epitaxially grown graphene layer and a Ru(0001) substrate. Atomic resolution scanning tunneling microscopy images of perfect graphene lattice are obtained on top of these intercalated metals, showing that the high quality of the original graphene is, in the end, undisturbed by the intercalation. A model based theoretical calculation is proposed for the intercalation mechanism: metal atom-aided defect formation and self-healing of C-C bonds at high temperature. These intercalated materials include noble metals, magnetic metals, a IIIA group metal, and a rare earth metal, which indicates that intercalation through epitaxial graphene on Ru(0001) is a universal approach for metals.

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Intercalation of metal islands and films at the interface of epitaxially grown graphene and Ru(0001) surfaces

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