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Shifting photo-stationary light-induced excited spin state trapping equilibrium towards higher temperature by increasing light fluence

hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorGOURNAY, Lucas
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorCHABAN, Ievgeniia
hal.structure.identifierInstitut des Matériaux de Nantes Jean Rouxel [IMN]
dc.contributor.authorMEVELLEC, Jean-Yves
hal.structure.identifierInstitut des Matériaux de Nantes Jean Rouxel [IMN]
dc.contributor.authorHUMBERT, Bernard
hal.structure.identifierInstitut des Matériaux de Nantes Jean Rouxel [IMN]
dc.contributor.authorJANOD, Etienne
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorGUÉRIN, Laurent
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.authorDARO, Nathalie
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCHASTANET, Guillaume
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorCOLLET, Eric
dc.date.issued2022-03
dc.identifier.issn0009-2614
dc.description.abstractEnThe Light-Induced Excited Spin-State Trapping (LIESST) process allows tuning the electronic state of spin-crossover materials from low (LS) to high spin (HS) states. The photoinduced HS state is long-lived, up to a characteristic temperature, T(LIESST), above which the system relaxes rapidly to the LS state. We study the effect of light irradiance on competing LS→HS up-conversion and HS→LS thermal relaxation on the [Fe(phen)2(NCS)2] system. Raman spectroscopy and magnetic measurements are used to investigate this phenomenon. An empiric model describes the competition between up conversion and thermal relaxation mechanisms and the stabilization of photo-stationary state towards higher temperature.
dc.description.sponsorshipTransitions de phase ELECTROnique de matériaux moleculaires controllées par PHONONIQUE non-linéaire - ANR-19-CE30-0004
dc.description.sponsorshipTrajectoires multiples vers les états excités - ANR-19-CE29-0018
dc.language.isoen
dc.publisherElsevier
dc.subject.enLIESST
dc.subject.enSpin crossover
dc.subject.enPhotoinduced phenomena
dc.subject.enRaman
dc.subject.enOut-of-equilibrium
dc.title.enShifting photo-stationary light-induced excited spin state trapping equilibrium towards higher temperature by increasing light fluence
dc.typeArticle de revue
dc.identifier.doi10.1016/j.cplett.2022.139395
dc.subject.halChimie/Matériaux
dc.subject.halPhysique [physics]
bordeaux.journalChemical Physics Letters
bordeaux.page139395 (6 p.)
bordeaux.volume791
bordeaux.peerReviewedoui
hal.identifierhal-03564031
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03564031v1
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