Periodically rippled graphene: growth and spatially resolved electronic structure

A. L. Vazquez de Parga; F. Calleja; B. Borca; M. C. G. Passeggi; J. J. Hinarejo; F. Guinea; R. Miranda

doi:10.1103/PhysRevLett.100.056807

Periodically rippled graphene: growth and spatially resolved electronic structure

Materials Science 2009-11-13 v1 Mesoscale and Nanoscale Physics

Authors: A. L. Vazquez de Parga , F. Calleja , B. Borca , M. C. G. Passeggi , J. J. Hinarejo , F. Guinea , R. Miranda

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Abstract

We studied the growth of an epitaxial graphene monolayer on Ru(0001). The graphene monolayer covers uniformly the Ru substrate over lateral distances larger than several microns reproducing the structural defects of the Ru substrate. The graphene is rippled with a periodicity dictated by the difference in lattice parameter between C and Ru. The theoretical model predict inhomogeneities in the electronic structure. This is confirmed by measurements in real space by means of scanning tunnelling spectroscopy. We observe electron pockets at the higher parts of the ripples.

Keywords

epitaxial graphene graphene physics graphene

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@article{arxiv.0709.0360,
  title  = {Periodically rippled graphene: growth and spatially resolved electronic structure},
  author = {A. L. Vazquez de Parga and F. Calleja and B. Borca and M. C. G. Passeggi and J. J. Hinarejo and F. Guinea and R. Miranda},
  journal= {arXiv preprint arXiv:0709.0360},
  year   = {2009}
}

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5 pages

Periodically rippled graphene: growth and spatially resolved electronic structure

Abstract

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