Dimerization structures on the metallic and semiconducting fullerene tubules with half-filled electrons

@inproceedings{Harigaya1992DimerizationSO,
  title={Dimerization structures on the metallic and semiconducting fullerene tubules with half-filled electrons},
  author={Kikuo Harigaya and Mitsutaka Fujita},
  year={1992}
}
Possible dimerization patterns and electronic structures in fullerene tubules as the one-dimensional pi-conjugated systems are studied with the extended Su-Schrieffer-Heeger model. We assume various lattice geometries, including helical and nonhelical tubules. The model is solved for the half-filling case of $\pi$-electrons. (1) When the undimerized systems do not have a gap, the Kekule structures prone to occur. The energy gap is of the order of the room temperatures at most and metallic… 
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