The structure of suspended graphene sheets

Jannik C. Meyer (), A. K. Geim (), M. I. Katsnelson, K. S. Novoselov, T. J. Booth and S. Roth
Additional contact information
Jannik C. Meyer: Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
A. K. Geim: Manchester Centre for Mesoscience and Nanotechnology, University of Manchester, Oxford Road, Manchester M13 9PL, UK
M. I. Katsnelson: Institute for Molecules and Materials, Radboud University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
K. S. Novoselov: Manchester Centre for Mesoscience and Nanotechnology, University of Manchester, Oxford Road, Manchester M13 9PL, UK
T. J. Booth: Manchester Centre for Mesoscience and Nanotechnology, University of Manchester, Oxford Road, Manchester M13 9PL, UK
S. Roth: Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany

Nature, 2007, vol. 446, issue 7131, 60-63

Abstract: Graphene is flat-ish Graphene — a recently isolated one-atom-thick layered form of graphite — is a hot topic in the materials science and condensed matter physics communities, where it is proving to be a popular model system for investigation. An experiment involving individual graphene sheets suspended over a microscale scaffold has allowed structure determination using transmission electron microscopy and diffraction, perhaps paving the way towards an answer to the question of why graphene can exist at all. The 'two-dimensional' sheets, it seems, are not flat, but wavy. The undulations are less pronounced in a two-layer system, and disappear in multilayer samples. Learning more about this 'waviness' may reveal what makes these extremely thin carbon membranes so stable.

Date: 2007
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DOI: 10.1038/nature05545

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