Optical Absorption in Higher Fullerenes : Effects of Symmetry Reduction

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概要

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• Optical absorption spectra of higher fullerenes (C_<70> and C_<76>) as well as of C_<60> are calculated by a tight binding model with a long-range Coulomb interaction. A reasonable parameter set gives calculated spectra which are in overall agreement with those obtained from experiments of C_<60>and C_<70> in solutions. The variations of the spectral shape are discussed in relation to the symmetry reduction from C_<60> and C_<70> to C_<76>: the optical gap decreases and the spectra exhibit a larger number of small structures in the dependences on the excitation energy.

• 社団法人応用物理学会の論文
• 1994-06-01

著者

• Harigaya Kikuo

  Fundamental Physics Section Electrotechnical Laboratory

関連論文

• Dispersion of the Third-Order Nonlinear Optical Susceptibility in C_60 Calculated with a Tight-Binding Model
• Polaron Excitations in Fullerenes : Theory as π-Conjugated Systems
• Optical Absorption Spectra of A_6C_ : Reduction of Effective Coulomb Interactions
• Optical Absorption in Higher Fullerenes : Effects of Symmetry Reduction
• Lattice and Electronic Structures of Undoped and Doped C_ Molecules by the Extended Su-Schrieffer-Heeger Model

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