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hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorPARPIIEV, T.
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorSERVOL, M.
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorLORENC, Maciej
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorCHABAN, Ievgeniia
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorLEFORT, R.
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorCOLLET, Eric
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorCAILLEAU, H.
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorRUELLO, P.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDARO, Nathalie
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCHASTANET, Guillaume
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorPEZERIL, Thomas
dc.date.issued2017
dc.identifier.issn0003-6951
dc.description.abstractEnWe 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.isoen
dc.publisherAmerican Institute of Physics
dc.subject.enFemtosecond lasers
dc.subject.enPhotoexcitations
dc.subject.enChemical processes
dc.subject.enAcoustic waves
dc.subject.enPhonons
dc.subject.enLight scattering
dc.title.enUltrafast non-thermal laser excitation of gigahertz longitudinal and shear acoustic waves in spin-crossover molecular crystals [Fe(PM-AzA)(2)(NCS)(2)]
dc.typeArticle de revue
dc.identifier.doi10.1063/1.5009657
dc.subject.halPhysique [physics]
bordeaux.journalApplied Physics Letters
bordeaux.page179901 (2 p.)
bordeaux.volume111
bordeaux.issue17
bordeaux.peerReviewedoui
hal.identifierhal-01681154
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01681154v1
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