Interchain Pair Hopping of Solitons and Polarons via Dopants in Polyacetylene
arXiv:cond-mat/9703002 · doi:10.1143/JPSJ.66.933
Abstract
Interchain hopping of solitons and polarons in polyacetylene is studied by numerical simulation of their motion under an electric field. Use is made of the Su-Schrieffer-Heeger model supplemented with intrachain electron-electron interactions and dopant potentials. We find that charged solitons can hop to the opposite chain by forming bound pairs (bipolarons). For the case of polarons also, hopping in a pair is more favorable than single polaron hopping. Interchain hopping of a polaron pair is more efficient than that of a soliton pair.
arXiv comment10 pages, 7 Postscript figures, RevTeX, to appear in J. Phys. Soc. Jpn.(1997) Apr