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Wagner, P., Ivanovskaya, V. V., Rayson, M. J., Briddon, P. R. & Ewels, C. P. (2013) Mechanical properties of nanosheets and nanotubes investigated using a new geometry independent volume definition. J. Phys.-Condes. Matter, 25 155302. 
Added by: Laurent Cournède (2016-03-10 21:23:31)
Type de référence: Article
DOI: 10.1088/0953-8984/25/15/155302
Numéro d'identification (ISBN etc.): 0953-8984
Clé BibTeX: Wagner2013b
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Catégories: PMN
Mots-clés: carbon nanotubes, elastic properties, graphene, mos2, radii, ropes, van
Créateurs: Briddon, Ewels, Ivanovskaya, Rayson, Wagner
Collection: J. Phys.-Condes. Matter
Consultations : 9/467
Indice de consultation : 3%
Indice de popularité : 0.75%
Résumé     
Cross-sectional area and volume become difficult to define as material dimensions approach the atomic scale. This limits the transferability of macroscopic concepts such as Young's modulus. We propose a new volume definition where the enclosed nanosheet or nanotube average electron density matches that of the parent layered bulk material. We calculate the Young's moduli for various nanosheets (including graphene, BN and MoS2) and nanotubes. Further implications of this new volume definition such as a Fermi level dependent Young's modulus and out-of-plane Poisson's ratio are shown.
Added by: Laurent Cournède  
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