Zone-Boundary Phonon in Graphene and Nanotube | Zendy

Hidekatsu Suzuura | Zendy; Tsuneya Ando | Zendy

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Zone-Boundary Phonon in Graphene and Nanotube

Author(s) -

Hidekatsu Suzuura,

Tsuneya Ando

Publication year - 2008

Publication title -

journal of the physical society of japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.76

H-Index - 139

eISSN - 1347-4073

pISSN - 0031-9015

DOI - 10.1143/jpsj.77.044703

Subject(s) - graphene , phonon , hamiltonian (control theory) , condensed matter physics , scattering , boundary value problem , nanotube , valence (chemistry) , physics , materials science , carbon nanotube , quantum mechanics , nanotechnology , mathematical optimization , mathematics

Zone-boundary phonons are described in a valence-force-field model and then converted into a continuum model. Only a mode with the highest frequency corresponding to a Kekule-type distortion gives rise to inter-valley electron scattering between K and K' points. An effective Hamiltonian for this interaction is obtained and used for the estimation of inter-valley scattering in graphene and nanotubes.

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