Periodically Rippled Graphene: Growth and Spatially Resolved Electronic Structure

A. L. Vázquez de Parga, F. Calleja, B. Borca, M. C. G. Passeggi, Jr., J. J. Hinarejos, F. Guinea, and R. Miranda
Phys. Rev. Lett. 100, 056807 – Published 7 February 2008
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Abstract

We grow epitaxial graphene monolayers on Ru(0001) that cover uniformly the substrate over lateral distances larger than several microns. The weakly coupled graphene monolayer is periodically rippled and it shows charge inhomogeneities in the charge distribution. Real space measurements by scanning tunneling spectroscopy reveal the existence of electron pockets at the higher parts of the ripples, as predicted by a simple theoretical model. We also visualize the geometric and electronic structure of edges of graphene nanoislands.

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  • Received 10 August 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.056807

©2008 American Physical Society

Authors & Affiliations

A. L. Vázquez de Parga1, F. Calleja1, B. Borca1, M. C. G. Passeggi, Jr.2, J. J. Hinarejos1, F. Guinea3, and R. Miranda1,4

  • 1Departamento de Física de la Materia Condensada e Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
  • 2Laboratorio de Superficies e Interfases, INTEC (CONICET and UNL), S3000GLN Santa Fe, Argentina
  • 3Instituto de Ciencia de Materiales, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
  • 4Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia), Cantoblanco, 28049 Madrid, Spain

Comments & Replies

Vázquez de Parga et al. Reply:

A. L. Vázquez de Parga, F. Calleja, B. Borca, M. C. G. Passeggi, Jr., J. J. Hinarejos, F. Guinea, and R. Miranda
Phys. Rev. Lett. 101, 099704 (2008)

Comment on “Periodically Rippled Graphene: Growth and Spatially Resolved Electronic Structure”

B. Wang, M-L. Bocquet, S. Günther, and J. Wintterlin
Phys. Rev. Lett. 101, 099703 (2008)

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Vol. 100, Iss. 5 — 8 February 2008

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