Time-Resolved Pump-Probe Diffraction Experiment at SOLEIL Synchrotron: Photoinduced Spin Transition in the Molecular Crystal [TPA Fe(III) TCC] PF6
| Autor: | J.P. Ricaud, Sylvain Ravy, M. Buron-Le Cointe, M. Bordessoule, Maciej Lorenc, Claire Laulhé, F. Legrand, Antoine Tissot, Hervé Cailleau, P. Féret, S. Hustache, Ph. Hollander, Eric Collet, Pierre Fertey, E. Elkaim, Marie-Laure Boillot |
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| Přispěvatelé: | Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Institut de Physique de Rennes (IPR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC) |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Diffraction
0303 health sciences Materials science Spin states business.industry 030303 biophysics Spin transition General Physics and Astronomy Bragg's law Physics::Optics 01 natural sciences Synchrotron law.invention Crystal 03 medical and health sciences Optics Beamline law 0103 physical sciences [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Atomic physics 010306 general physics business Single crystal PACS: 61.50.Ks 61.05.cp 31.70.Ks 78.47.J¡ |
| Zdroj: | Acta Physica Polonica A Acta Physica Polonica A, Polish Academy of Sciences. Institute of Physics, 2012, 121 (2), pp.332-335 Acta Physica Polonica A, 2012, 121 (2), pp.332-335. ⟨10.12693/APhysPolA.121.332⟩ ResearcherID |
| ISSN: | 0587-4246 1898-794X |
| Popis: | International audience; We present the first time-resolved pump-probe experiment performed at synchrotron SOLEIL at the CRISTAL diffraction beamline. The time-resolved setup will be used in the near future for sub-ns time resolution experiments. We studied spin state switching in a [TPA Fe(III) TCC] PF6 single crystal as induced by a ¼ 6 ns laser pulse (1064 nm), by measuring the 3D diffraction volume of the 002 Bragg reflection as a function of time after excitation. The intensity profiles (rocking curves) are found to evolve at two characteristic timescales, namely hundreds of ns and few ¹s, exhibiting subtle profile changes and peak broadenings. Consistently with previous studies, we interpret these features as due to structural inhomogeneities related to laser-induced deformation wave propagation and heat diffusion, which both start from the absorbing sites. |
| Databáze: | OpenAIRE |
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