Peierls transition with acoustic phonons and solitwistons in carbon nanotubes

2019-11-27 12:26:48

carbon instability nanotubes Peierls phonons

责任者: Figge, M.T.;Mostovoy, M.;Knoester, J. 单位: Inst. for Theor. Phys., Groningen Univ., Netherlands 来源出处: Physical Review Letters(Phys. Rev. Lett. (USA)),2001/05/14,86(20):4572-5 摘要: We show that the Peierls instability can result in softening of acoustic phonons with small wave vectors and suggest that this unusual transition takes place in carbon nanotubes, resulting in a static twist deformation of the nanotube lattice. The topological excitations in the ordered phase an immobile and propagate only in pairs 关键词: carbon nanotubes;Peierls instability;phonons;soft modes;Peierls transition;acoustic phonons;solitwistons;C nanotubes;Peierls instability;mode softening;static twist deformation;topological excitations;nanotube lattice;ordered phase;C