✦ LIBER ✦

Soliton-like charge-transfer exciton states in quasi-one-dimensional organic crystals

✍ Scribed by Yu.N. Gartstein; A.A. Zakhidov; P.K. Khabibullaev

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 486 KB
Volume: 127
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(86)80270-6

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✦ Synopsis

For charge-transfer excitons strongly interacting with vibrations of a donor-acceptor chain, soliton-like states are found to have an internal structure: at a certain ratio of polaronic shift and electron-hole relative motion energy, a transition from a symmetric to a dimerized soliton occurs accompanied by a crucial change of the lattice distortion pattern, soliton length, etc. This transition corresponds to spontaneous symmetry breaking within an extended state. The polarons on coupled chains are briefly discussed.

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