Successive Dynamical Steps of Photoinduced Switching of a Molecular Fe(III) Spin-Crossover Material by Time-Resolved X-Ray Diffraction

M. Lorenc, J. Hébert, N. Moisan, E. Trzop, M. Servol, M. Buron-Le Cointe, H. Cailleau, M. L. Boillot, E. Pontecorvo, M. Wulff, S. Koshihara, and E. Collet
Phys. Rev. Lett. 103, 028301 – Published 10 July 2009
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Abstract

We investigate the out-of-equilibrium switching dynamics of a molecular Fe(III) spin-crossover solid triggered by a femtosecond laser flash. The time-resolved x-ray diffraction and optical results show that the dynamics span from subpicosecond local photoswitching followed by volume expansion (nanosecond) and thermal switching (microsecond). We present a physical picture of the consecutive steps in the photoswitching of molecular materials.

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  • Received 25 July 2008

DOI:https://doi.org/10.1103/PhysRevLett.103.028301

©2009 American Physical Society

Authors & Affiliations

M. Lorenc1, J. Hébert1, N. Moisan1, E. Trzop1, M. Servol1, M. Buron-Le Cointe1,2, H. Cailleau1,2, M. L. Boillot3, E. Pontecorvo4, M. Wulff4, S. Koshihara5, and E. Collet1,2,*

  • 1Institut de Physique de Rennes, Université de Rennes 1-CNRS, UMR 6251, 35042 Rennes, France
  • 2ERATO, Japan Science and Technology Agency, 3-5 Sanbanchou, Chiyoda-ku, Tokyo 102-0075, Japan
  • 3Institut de Chimie Moléculaire et Matériaux d’Orsay, UMR-CNRS 8182, Université Paris-Sud, 91405 Orsay, France
  • 4European Synchrotron Radiation Facility, 38043 Grenoble, France
  • 5Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro-ku, Tokyo 152-8551, Japan

  • *To whom correspondence should be addressed. Eric.Collet@univ-rennes1.fr

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Issue

Vol. 103, Iss. 2 — 10 July 2009

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