Direct evidence of lattice-relaxed charge transfer exciton strings

Autor:	Tadeusz Luty, Hervé Cailleau, Norbert Karl, Eric Collet, Sylvain Ravy, M. Buron-Le Cointe, Piotr Czarnecki, M. H. Lemée-Cailleau, J. F. Berar
Rok vydání:	2002
Předmět:	Physics Permittivity Diffuse scattering Condensed matter physics Direct evidence Lattice (order) Exciton General Physics and Astronomy Dielectric Biexciton Molecular electronic transition
Zdroj:	Europhysics Letters (EPL). 57:67-73
ISSN:	1286-4854 0295-5075
DOI:	10.1209/epl/i2002-00542-5
Popis:	We report first direct evidence, by X-ray diffuse scattering, of lattice-relaxed charge transfer exciton strings, which are one-dimensional self-trapped multiadjacent excitons. These non-linear excitations are key objects in quasi–one-dimensional organic compounds that undergo the neutral-ionic transition and are responsible for their physical properties. The one-dimensional fluctuations are very well described within the framework of the transfer integral method and physical parameters are deduced from both X-ray and dielectric measurements.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6fc810bf6978f04b0cd1def85eb444e0 https://doi.org/10.1209/epl/i2002-00542-5 Zobrazit plný text záznamu