1. White Light Snapshot of Non-Equilibrium High-Spin State in a Molecular Crystal
- Author
-
Hervé Cailleau, Antoine Tissot, Maciej Lorenc, Marie-Laure Boillot, Eric Collet, Marina Servol, Wawrzyniec Kaszub, 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)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Europe (FEDER), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Thermal equilibrium ,Materials science ,Spin states ,Absorption spectroscopy ,business.industry ,General Physics and Astronomy ,Physics::Optics ,Laser ,Molecular physics ,law.invention ,Supercontinuum ,Optical pumping ,Optics ,law ,Picosecond ,Femtosecond ,[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] ,82.53.Xa, 78.47.D¡, 42.70.Gi, 31.70.Ks ,Condensed Matter::Strongly Correlated Electrons ,business - Abstract
International audience; The spin-crossover compound [(TPA)Fe(TCC)]PF6 was experimentally investigated using time-resolved optical pump and supercontinuum probe technique. Changes of VIS optical density at thermal equilibrium of a crystal with different high-spin/low-spin fractions are compared to changes recorded picoseconds after femtosecond laser excitation. A white light snapshot of the high-spin state at 180 K is extracted from time-resolved spectra. Our results indicate that the temperature of the electronic state affects the absorption spectra of high- and low-spin states.
- Full Text
- View/download PDF