Time-Resolved Pump-Probe Diffraction Experiment at SOLEIL Synchrotron: Photoinduced Spin Transition in the Molecular Crystal [TPA Fe(III) TCC] PF_6

• Authors: C. Laulhé , S. Ravy , P. Fertey , E. Elkaim , F. Legrand , P. Féret , Ph. Hollander , S. Hustache , M. Bordessoule , J. Ricaud , E. Collet , M. Lorenc , M. Buron-Le Cointe , H. Cailleau , A. Tissot , M. Boillot
• Languages of publication: EN

Abstracts

EN

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] PF_6 single crystal as induced by a ≈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 μs, 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.

Keywords

EN

61.50.Ks; 61.05.cp; 31.70.Ks; 78.47.J-

Discipline

• 31.70.Ks: Molecular solids
• 61.05.cp: X-ray diffraction
• 61.50.Ks: Crystallographic aspects of phase transformations; pressure effects(see also 81.30.Hd in materials science)
• 78.47.J-: Ultrafast spectroscopy (<1>(see also 42.65.Re Ultrafast processes; optical pulse generation and pulse compression; 82.53.Mj Femtosecond probing of semiconductor nanostructures)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 2
• Pages: 332-335

Dates

published

2012-02

Contributors

author

C. Laulhé

• Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin - B.P. 48, 91 192 Gif-sur-Yvette, France

author

S. Ravy

• Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin - B.P. 48, 91 192 Gif-sur-Yvette, France

author

P. Fertey

• Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin - B.P. 48, 91 192 Gif-sur-Yvette, France

author

E. Elkaim

• Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin - B.P. 48, 91 192 Gif-sur-Yvette, France

author

F. Legrand

• Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin - B.P. 48, 91 192 Gif-sur-Yvette, France

author

P. Féret

• Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin - B.P. 48, 91 192 Gif-sur-Yvette, France

author

Ph. Hollander

• Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin - B.P. 48, 91 192 Gif-sur-Yvette, France

author

S. Hustache

• Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin - B.P. 48, 91 192 Gif-sur-Yvette, France

author

M. Bordessoule

• Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin - B.P. 48, 91 192 Gif-sur-Yvette, France

author

J. Ricaud

• Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin - B.P. 48, 91 192 Gif-sur-Yvette, France

author

E. Collet

• Institut de Physique de Rennes, Université de Rennes I - CNRS, UMR 6251, 35 042 Rennes, France

author

M. Lorenc

• Institut de Physique de Rennes, Université de Rennes I - CNRS, UMR 6251, 35 042 Rennes, France

author

M. Buron-Le Cointe

• Institut de Physique de Rennes, Université de Rennes I - CNRS, UMR 6251, 35 042 Rennes, France

author

H. Cailleau

• Institut de Physique de Rennes, Université de Rennes I - CNRS, UMR 6251, 35 042 Rennes, France

author

A. Tissot

• Institut de Chimie Moléculaire et Matériaux d'Orsay, UMR-CNRS 8182, Université Paris-Sud 11, 91405 Orsay, France

author

M. Boillot

• Institut de Chimie Moléculaire et Matériaux d'Orsay, UMR-CNRS 8182, Université Paris-Sud 11, 91405 Orsay, France

References

• [1] J. Feikes, K. Holldack, P. Kuske, G. Wüstefeld, in: Proc. EPAC'04 - WEPLT session, Lucerne 2004, p. 1954
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Identifiers

DOI

10.12693/APhysPolA.121.332