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Article Dans Une Revue Physical Review Letters Année : 2010

Capturing One-Dimensional Precursors of a Photoinduced Transformation in a Material

Résumé

Achieving control of photoinduced phase transitions requires understanding how materials work during transformation induced by a laser pulse. Here we investigate the precursors of a photoinduced phase transition in the highly cooperative charge-transfer molecular crystal tetrathiafulvalene-p-chloranil and provide key insights. The photogeneration of one-dimensional nanoscale clusters was detected by time-resolved diffuse x-ray scattering with 50-ps time resolution. Such clustering of structurally relaxed electronic excitations is expected to be a common process in many materials presenting photoinduced transformations.
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Dates et versions

hal-00732934 , version 1 (17-09-2012)

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Laurent Guérin, Johan Hébert, Marylise Buron-Le Cointe, Shin-Ichi Adachi, Shin-Ya Koshihara, et al.. Capturing One-Dimensional Precursors of a Photoinduced Transformation in a Material. Physical Review Letters, 2010, 105, pp.246101. ⟨10.1103/PHYSREVLETT.105.246101⟩. ⟨hal-00732934⟩
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