Density functional study of the metallization of a linear carbon chain inside single wall carbon nanotubes
β Scribed by A. Tapia; L. Aguilera; C. Cab; R.A. Medina-Esquivel; R. de Coss; G. Canto
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 841 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0008-6223
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Here, we present the synthesis and characterization of low-density single-walled carbon nanotube-based aerogels (SWNT-CA). Aerogels with varying nanotube loading (0-55 wt.%) and density (20-350 mg cm Γ3 ) were fabricated and characterized by four-probe method, electron microscopy, Raman spectroscopy
Making use of the continuum model, the phonon density of states (PDOS) are calculated analytically for singlewalled carbon nanotubes (SWNT). Neglecting the interaction between twisting and longitudinal stress, the phonon dispersion relations are also determined analytically. The frequency of the bre