Y L Mao et al 2004 Nanotechnology 15 1000 doi:10.1088/0957-4484/15/8/024
Y L Mao1, X H Yan1,2,3, Y Xiao1, J Xiang1, Y R Yang1 and H L Yu1
Show affiliationsUsing first-principles calculations, we investigate the comparative stability of sub-0.4 nm carbon nanotubes. Compared to the fullerenes C20 and C60, it is found that the most likely carbon nanotubes with a small diameter 0.3 nm are (2,2),(3,1) and (4,0) nanotubes. The spontaneous symmetry breaking of an isolated (2,2) nanotube produces an energy gap at the Fermi level converting it into a semiconductor. The curvature effects lowered the π* band to cross the Fermi energy, leading to the (4,0) nanotube being metallic.
Issue 8 (August 2004)
Received 12 January 2004
Published 18 June 2004
Y L Mao et al 2004 Nanotechnology 15 1000
A Haerdig and F Ravndal 1993 Eur. J. Phys. 14 171
G. Brotons et al 2006 Europhys. Lett. 75 992
Mahiko Suzuki 2007 J. Phys. G: Nucl. Part. Phys. 34 283
André Peshier 2005 J. Phys. G: Nucl. Part. Phys. 31 S371
Yurii V Dumin 2009 New J. Phys. 11 103032
Andrew DeBenedictis 1999 Class. Quantum Grav. 16 1955
I Dunn et al 1993 J. Phys. D: Appl. Phys. 26 1138
C Foias et al 2002 Nonlinearity 15 1881
Yoshitaka Fujita et al 2009 Metrologia 46 237