Disorder-induced neutral solitons in degenerate ground state polymers

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dc.creatorFigge, Marc Thilo
dc.creatorMostovoy, Maxim V.
dc.creatorKnoester, Jasper
dc.date1998-11-17
dc.date.accessioned2026-07-07T03:12:06Z
dc.date.available2026-07-07T03:12:06Z
dc.descriptionIn this letter, we study the effects of weak off-diagonal disorder on conjugated polymers with a doubly degenerate ground-state. We find that disorder induces a finite density of neutral solitons in the lattice dimerization of a polymer chain. Interchain interactions result in a linear potential between the solitons and, if sufficiently strong, bind them into pairs resulting in an exponential suppression of the soliton density. As neutral solitons carry spin 1/2, they contribute to the polymer's magnetic properties. We calculate the magnetic susceptibility and suggest measurements of the magnetic susceptibility in {\it trans}-polyacetylene at low temperatures.
dc.description2 pages, 1 Postscript figure included, submitted to Synthetic Metals
dc.identifierhttps://arxiv.org/abs/cond-mat/9811240
dc.identifierhttp://arxiv.org/abs/cond-mat/9811240
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/28784
dc.subjectSoft Condensed Matter
dc.subjectStatistical Mechanics
dc.titleDisorder-induced neutral solitons in degenerate ground state polymers
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