Abstract
We present a theory of the first-order transition to the metallic state in polyacetylene in terms of a crossover from a lattice of charged solitons to a regular array of polaronlike distortions. The polaronic metal is shown to have a strong indirect attractive interaction, ≃-2Δ/3, between electrons in the half-filled, narrow, polaron subband within the Peierls energy gap (=2Δ).
- Received 11 March 1985
DOI:https://doi.org/10.1103/PhysRevLett.55.308
©1985 American Physical Society