Ultrafast Dynamics of Reversibly Photoinduced Neutral-Ionic Transition in Tetrathiafulvalene-Chloranil Single Crystals

We report that bi-directional neutral-ionic (N-I) phase transition in the single crystal of tetrathiafulvalene-chloranil (TTF-CA) can be triggered by pulsed laser excitation with 100 femto-second width. The excitation intensity dependence of the dynamics of N-I domain-wall indicates that cooperative...

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Bibliographic Details
Published in:Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals Molecular crystals and liquid crystals, 1998-05, Vol.314 (1), p.101-106
Main Authors: Akimoto, Katsuya, Takahashi, Yosuke, Koshihara, Shin-Ya, Minami, Fujio, Tokura, Yoshinori, Koda, Takao
Format: Article
Language:English
Subjects:
domain-wall
neutral-ionic transition
photoinduced phase transition
ultra-fast dynamics
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Summary:We report that bi-directional neutral-ionic (N-I) phase transition in the single crystal of tetrathiafulvalene-chloranil (TTF-CA) can be triggered by pulsed laser excitation with 100 femto-second width. The excitation intensity dependence of the dynamics of N-I domain-wall indicates that cooperative electron-lattice and/or electron-electron interactions play a key role in the driving mechanism of N-I photoinduced phase transition.
ISSN:1058-725X
DOI:10.1080/10587259808042463