Elastic Properties of C and B<sub>x</sub> C<sub>y</sub>N<sub>z</sub> Composite Nanotubes

Physical Review Letters 80, 4502 - 4505 (1998)

Elastic Properties of C and Bx CyNz Composite Nanotubes

E. Hernández, C. Goze, P. Bernier, A. Rubio

We present a comparative study of the energetic, structural, and elastic properties of carbon and composite single-wall nanotubes, including BN, BC3, and BC2N nanotubes, using a nonorthogonal tight-binding formalism. Our calculations predict that carbon nanotubes have a higher Young modulus than any of the studied composite nanotubes, and of the same order as that found for defect-free graphene sheets. We obtain good agreement with the available experimental results

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