Journal
PHYSICAL REVIEW B
Volume 61, Issue 16, Pages 11088-11092Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.61.11088
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The growth of narrow single-wall carbon nanotubes through adduction of small carbon clusters is studied using a molecular-dynamics simulation method. Statistical behavior of the growth and defect formation process is analyzed. For C-2 dimer colliding onto the side-wall of narrow single-wall nanotubes, it is very easy to get the dimer to be incorporated into the network of the tube during annealing, forming localized topological defects. During long-time annealing at 2300 K, thermal fluctuation can cause structural switching among different metastable states and thereby result in energy pulses in the energy vs time curve.
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