GALLÉ, G.; DEGERT, Jérôme; MAURIAC, Cindy; ETRILLARD, Céline; LETARD, Jean-François; FREYSZ, Eric

doi:10.1016/j.cplett.2010.09.059

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GALLÉ, G.
Centre de physique moléculaire optique et hertzienne [CPMOH]

DEGERT, Jérôme
Centre de physique moléculaire optique et hertzienne [CPMOH]

MAURIAC, Cindy
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Chemical Physics Letters. 2010, vol. 500, n° 1-3, p. 18-22

Elsevier

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We show that the combination of a free running 80 MHz femtosecond Ti–sapphire oscillator with a nanosecond Nd:YAG laser makes it possible to record in real time, with a nanosecond time resolution, reversible or irreversible phase transitions photo-induced by a single laser pulse. This set-up is used to study the spin state transition photo-induced inside and outside the thermal hysteresis loops of a series of [Fe(NH2trz)3]X2·nH2O compounds (with X = NO3 and Br). Original dynamics are presented and discussed. The results indicate that at room temperature, it is the laser induced heating that drives the recorded photo-induced phase transition.< Leer menos

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Nanoseconde study of spin state transition induced by a single nanosecond laser shot on [Fe(NH<sub>2</sub>trz)<sub>3</sub>] compounds inside and outside their thermal hysteresis loops

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