Ultrafast non-thermal laser excitation of gigahertz longitudinal and shear acoustic waves in spin-crossover molecular crystals [Fe(PM-AzA)(2)(NCS)(2)]
hal.structure.identifier | Institut des Molécules et Matériaux du Mans [IMMM] | |
dc.contributor.author | PARPIIEV, T. | |
hal.structure.identifier | Institut de Physique de Rennes [IPR] | |
dc.contributor.author | SERVOL, M. | |
hal.structure.identifier | Institut de Physique de Rennes [IPR] | |
dc.contributor.author | LORENC, Maciej | |
hal.structure.identifier | Institut des Molécules et Matériaux du Mans [IMMM] | |
dc.contributor.author | CHABAN, Ievgeniia | |
hal.structure.identifier | Institut de Physique de Rennes [IPR] | |
dc.contributor.author | LEFORT, R. | |
hal.structure.identifier | Institut de Physique de Rennes [IPR] | |
dc.contributor.author | COLLET, Eric | |
hal.structure.identifier | Institut de Physique de Rennes [IPR] | |
dc.contributor.author | CAILLEAU, H. | |
hal.structure.identifier | Institut des Molécules et Matériaux du Mans [IMMM] | |
dc.contributor.author | RUELLO, P. | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | DARO, Nathalie | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | CHASTANET, Guillaume | |
hal.structure.identifier | Institut des Molécules et Matériaux du Mans [IMMM] | |
dc.contributor.author | PEZERIL, Thomas | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0003-6951 | |
dc.description.abstractEn | We report GHz longitudinal as well as shear acoustic phonon photoexcitation and photodetection using femtosecond laser pulses in a spin-crossover molecular crystal. From our experimental observation of time domain Brillouin scattering triggered by the photoexcitation of acoustic waves across the low-spin (LS) to high-spin (HS) thermal crossover, we reveal a link between the molecular spin state and photoexcitation of coherent GHz acoustic phonons. In particular, we experimentally evidence a non-thermal pathway for the laser excitation of GHz phonons. We also provide experimental insights into the optical and mechanical parameters evolving across the LS/HS spin crossover temperature range. | |
dc.language.iso | en | |
dc.publisher | American Institute of Physics | |
dc.subject.en | Femtosecond lasers | |
dc.subject.en | Photoexcitations | |
dc.subject.en | Chemical processes | |
dc.subject.en | Acoustic waves | |
dc.subject.en | Phonons | |
dc.subject.en | Light scattering | |
dc.title.en | Ultrafast non-thermal laser excitation of gigahertz longitudinal and shear acoustic waves in spin-crossover molecular crystals [Fe(PM-AzA)(2)(NCS)(2)] | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1063/1.5009657 | |
dc.subject.hal | Physique [physics] | |
bordeaux.journal | Applied Physics Letters | |
bordeaux.page | 179901 (2 p.) | |
bordeaux.volume | 111 | |
bordeaux.issue | 17 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-01681154 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-01681154v1 | |
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