Static and dynamic order of cooperative multi-electron transfer

Autor: E. Zienkiewicz, Tadeusz Luty, Shin-ya Koshihara, Yasuhiro Tokura, Eric Collet, Masaki Takesada, Hervé Cailleau, B. Ouladdiaf, M. Buron-Le Cointe, M. H. Lemée-Cailleau, Naoto Nagaosa
Rok vydání: 2002
Předmět:
Zdroj: Europhysics Letters (EPL). 59:619-625
ISSN: 1286-4854
0295-5075
DOI: 10.1209/epl/i2002-00149-4
Popis: We report on high correlation and ordering of multi-electron transfer at neutral-ionic transformation in quasi–one-dimensional prototype crystal of tetrathiafulvalene-chloranil (TTF-CA). We present experimental evidences that the ordering of lattice-relaxed charge-transfer strings, which are nano-scale objects, occurs under static thermal equilibrium condition and non-equilibrium one achieved by femto-second laser irradiation. We suggest that the transformation is a profound example of self-organized, cooperative electron transfer with tendency for phase separation driven by energetics of inter-chain interaction and ferroelectric ordering.
Databáze: OpenAIRE