Journal
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 245, Issue 10, Pages 2177-2180Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.200879604
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Funding
- Flemish Science Foundation (FWO-VI)
- Bijzonder Onderzoeksfonds, Universiteit Antwerpen
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Born's long wave method is used to study the elastic properties of graphite and graphene. Starting from an empirical force constant model derived from full inplane phonon dispersions of graphite [Mohr et al., Phys. Rev. B 76, 035439 (2007)] we calculate the tension coefficients of graphene. Extending the model by interplanar interactions, we calculate the elastic constants of graphite. The agreement of our theoretical values with inelastic x-ray scattering results on elastic constants of graphite [Bosak et al., Phys. Rev. B 75, 153408 (2007)] is very satisfactory. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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