• Milestone

Soliton excitations in polyacetylene

W. P. Su, J. R. Schrieffer, and A. J. Heeger
Phys. Rev. B 22, 2099 – Published 15 August 1980; Erratum Phys. Rev. B 28, 1138 (1983)
An article within the collection: Physical Review B 50th Anniversary Milestones
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Abstract

A theoretical analysis of the excitation spectrum of long-chain polyenes is presented. Because of the twofold degeneracy of the ground state of the dimerized chain, elementary excitations corresponding to topological solitons are obtained. The solitons can have three charge states Q=0. ±e. The neutral soliton has spin one-half while the charged solitons have spin zero. One electronic state is localized at the gap center for each soliton or antisoliton present. The soliton's energy of formation, length, mass, activation energy for motion, and electronic properties are calculated. These results are compared with experiment.

  • Received 3 December 1979

DOI:https://doi.org/10.1103/PhysRevB.22.2099

©1980 American Physical Society

Erratum

Erratum: Soliton excitations in polyacetylene

W. P. Su, J. R. Schrieffer, and A. J. Heeger
Phys. Rev. B 28, 1138 (1983)

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This article appears in the following collection:

Physical Review B 50th Anniversary Milestones

These Milestone studies represent lasting contributions to physics by way of reporting significant discoveries, initiating new areas of research, or substantially enhancing the conceptual tools for making progress in the burgeoning field of condensed matter physics.

Authors & Affiliations

W. P. Su*, J. R. Schrieffer*, and A. J. Heeger

  • Department of Physics, University of Pennsylvania. Philadelphia, Pennsylvania 19174

  • *Address after January 1980: Dept. of Phys., Univ. of California, Santa Barbara, Calif. 93106.

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Vol. 22, Iss. 4 — 15 August 1980

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