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Appears in Collections:Computing Science and Mathematics Journal Articles
Peer Review Status: Refereed
Title: Stable forms of two-dimensional crystals and graphene
Authors: O'Hare, Anthony
Kusmartsev, Feodor V
Kugel, Kliment I
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Keywords: Graphene
Electron gas
Two-dimensional crystal
Issue Date: 1-Jun-2012
Publisher: Elsevier
Citation: O'Hare A, Kusmartsev FV & Kugel KI (2012) Stable forms of two-dimensional crystals and graphene, Physica B: Condensed Matter, 407 (11), pp. 1964-1968.
Abstract: We show that the "two-dimensional" graphene is stable due to transverse short-range displacements of carbon atoms, which may be described in a framework of Ising model with competing interactions. When temperature decreases, two transitions, high temperature disorder into order and order into low-temperature glass, arise. The graphene looks like a microscopic "washboard" with the wavelength of about 2-4 Å. Due to up-down asymmetry of the lattice distortions in graphene on substrate, a mini-bandgap arises. This leads to many new phenomena: a rectification of AC current induced by microwave or infrared radiation, the existence of self-trapping and a new type of fermionic mini-exciton-polaritons.
Type: Journal Article
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Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Complex Systems
Loughborough University
Loughborough University

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