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Title: Atomistic simulations of formation and stability of carbon nanorings
Authors: Liu, P.
Zhang, Y.W. 
Lu, C.
Issue Date: 15-Sep-2005
Citation: Liu, P., Zhang, Y.W., Lu, C. (2005-09-15). Atomistic simulations of formation and stability of carbon nanorings. Physical Review B - Condensed Matter and Materials Physics 72 (11) : -. ScholarBank@NUS Repository.
Abstract: Atomistic simulations of the formation and stability of nanorings through the energy relaxation of geometrically folded single-walled carbon closed rings are performed using the second-generation reactive bond-order potential. It is found that the critical diameter for forming a stable nanoring can be made significantly smaller than that observed in experiments. The critical diameter for an armchair nanoring is smaller than that for a zigzag nanoring with the same nanotube diameter. The effect of torsion on a nanoring reduces its critical diameter. A large flattening of the nanotube cross section is found to be effective for the reduction in stress and stiffness of the nanoring. In addition, the instability of a nanoring always starts with the formation of short wavelength ripples on the compressed side of the nanotube. Subsequently, some ripples will develop into buckles, resulting in buckling failures. © 2005 The American Physical Society.
Source Title: Physical Review B - Condensed Matter and Materials Physics
ISSN: 10980121
DOI: 10.1103/PhysRevB.72.115408
Appears in Collections:Staff Publications

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