Using femtosecond pump and probe spectroscopy and ab-initio calculations, we show that upon photoexcitation of dimers of tetramethyl-tetrathiafulvalene cations, excess vibronic energy is deposited predominantly into coherent phonons that lead to photoinduced phase transitions in linear chains of these materials.
Real-time investigation of elementary steps for photo-induced phase transition in a model dimer
C Manzoni;
2007
Abstract
Using femtosecond pump and probe spectroscopy and ab-initio calculations, we show that upon photoexcitation of dimers of tetramethyl-tetrathiafulvalene cations, excess vibronic energy is deposited predominantly into coherent phonons that lead to photoinduced phase transitions in linear chains of these materials.File in questo prodotto:
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