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Activation of coherent lattice phonon following ultrafast molecular spin-state photo-switching: a molecule-to-lattice energy transfer

hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorMARINO, Andrea
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorCAMMARATA, Marco
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMATAR, Samir F.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLÉTARD, Jean-François
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCHASTANET, Guillaume
hal.structure.identifierLinac Coherent Light Source [LCLS]
dc.contributor.authorCHOLLET, Matthieu
hal.structure.identifierLinac Coherent Light Source [LCLS]
dc.contributor.authorGLOWNIA, James Michael
hal.structure.identifierLinac Coherent Light Source [LCLS]
dc.contributor.authorLEMKE, Henrik T.
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorCOLLET, Eric
dc.date.issued2016
dc.description.abstractEnWe combine ultrafast optical spectroscopy with femtosecond X-ray absorption to study the photo-switching dynamics of the [Fe(PM-AzA)2(NCS)2] spin-crossover molecular solid. The light-induced excited spin-state trapping process switches the molecules from low spin to high spin (HS) states on the sub-picosecond timescale. The change of the electronic state (<50 fs) induces a structural reorganization of the molecule within 160 fs. This transformation is accompanied by coherent molecular vibrations in the HS potential and especially a rapidly damped Fe-ligand breathing mode. The time-resolved studies evidence a delayed activation of coherent optical phonons of the lattice surrounding the photoexcited molecules.
dc.description.sponsorshipEtude femtoseconde rayons X et optique de la dynamique ultrarapide de photocommutation de matériaux moléculaires magnétiques - ANR-13-BS04-0002
dc.language.isoen
dc.publisherAIP
dc.title.enActivation of coherent lattice phonon following ultrafast molecular spin-state photo-switching: a molecule-to-lattice energy transfer
dc.typeArticle de revue
dc.identifier.doi10.1063/1.4936290
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
dc.subject.halPhysique [physics]
dc.subject.halChimie/Chimie de coordination
dc.subject.halChimie/Matériaux
bordeaux.journalStructural Dynamics
bordeaux.page023605 (15 p.)
bordeaux.volume3
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-01226720
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01226720v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Structural%20Dynamics&amp;rft.date=2016&amp;rft.volume=3&amp;rft.issue=2&amp;rft.spage=023605%20(15%20p.)&amp;rft.epage=023605%20(15%20p.)&amp;rft.au=MARINO,%20Andrea&amp;CAMMARATA,%20Marco&amp;MATAR,%20Samir%20F.&amp;L%C3%89TARD,%20Jean-Fran%C3%A7ois&amp;CHASTANET,%20Guillaume&amp;rft.genre=article


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