Mu, WH (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
部门归属:
[Mu, Weihua; Zhang, Gang; Ou-Yang, Zhongcan] Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China; [Mu, Weihua; Ou-Yang, Zhongcan] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China; [Ou-Yang, Zhongcan] Tsinghua Univ, Ctr Adv Study, Beijing 100084, Peoples R China
英文摘要:
Spontaneous polygonization for a multiwalled carbon nanotubes (MWCNTs) without external pressure is understood by the competition between cohesion energy (with lattice mismatching and defect's effect) and curvature elastic energy of tubes inside the MWCNTs. Based on a continuum elastic model and perturbation analysis, the crucial conditions for spontaneous polygonization of MWCNT is expressed by fundamental parameters of MWCNTs, which are in reasonable agreement with all relevant experiments and computer simulations reported in literatures. Present approach can be used in further studies of crossectional geometry-dependent electronic properties of MWCNTs and other inorgnic nanotubes. (c) 2012 The Japan Society of Applied Physics
