期刊
PHYSICAL REVIEW LETTERS
卷 105, 期 24, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.246101
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资金
- Institut Universitaire de France
- ANR [NT09-3-548342]
- Region Bretagne [4146, 2178]
- Rennes Metropole
- Ministry of Education, Science, Sports and Culture, Japan
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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