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Type: Artigo de periódico
Title: Carbon nanotube with square cross-section: An ab initio investigation
Author: Autreto, PAS
Legoas, SB
Flores, MZS
Galvao, DS
Abstract: Recently, Lagos et al. [Nat. Nanotechnol. 4, 149 (2009)] reported the discovery of the smallest possible silver square cross-section nanotube. A natural question is whether similar carbon nanotubes can exist. In this work we report ab initio results for the structural, stability, and electronic properties for such hypothetical structures. Our results show that stable (or at least metastable) structures are possible with metallic properties. They also show that these structures can be obtained by a direct interconversion from SWNT (2,2). Large finite cubanelike oligomers, topologically related to these new tubes, were also investigated. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3483237]
Country: EUA
Editor: Amer Inst Physics
Citation: Journal Of Chemical Physics. Amer Inst Physics, v. 133, n. 12, 2010.
Rights: aberto
Identifier DOI: 10.1063/1.3483237
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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