First-principles calculations of the vibrational spectra of one-dimensionalC60polymers

Titus A. Beu, Jun Onoe
2006 Physical Review B  
The vibrational properties of several C 60 dimers belonging to the Stone-Wales rearrangement sequence ͓described by E. Osawa and K. Honda, Full. Sci. Technol. 4, 939 ͑1996͔͒, along with a trimer and a tetramer isomer are investigated by tight-binding and density functional calculations. The IR absorption bands found by Onoe, Nakayama, Aono and Hara ͓Appl. Phys. Lett. 82, 595 ͑2003͔͒ in the spectra of electron-beam irradiated C 60 films are explained and attributed mainly to surface vibrations
more » ... cated in the waist region of the considered polymers. The features of the Raman spectra are also discussed and related to experimental spectra of photopolymerized C 60 .
doi:10.1103/physrevb.74.195426 fatcat:2vo6ahcoevgxhhctp7e2oyskmy