Multiscale phenomena in molecular matter

Session

Multifunctional materials

8 Jul 2015, 09:00

Institute of Nuclear Physics PAN, Kraków

55. Real-time Multiscale Dynamics in Condensed Matter Impacted by Laser Pulse

Prof. Herve Cailleau (Institute of Physics, University Rennes 1, France)

08/07/2015, 09:00

There is a remarkable development in the field of ultra-fast time-resolved measurements in solids, in which a pump laser pulse is used to prepare the system into highly excited state, while the real-time induced electronic and/or structural dynamics is tracked with subsequent probe pulses. This adds a temporal dimension on top of energy and momentum. Nowadays, laser sources are able to deliver...

63. Mainstream and alternative routes to photoinduced phase transitions

Dr Maciej Lorenc (CNRS-University Rennes 1)

08/07/2015, 09:40

multifunctional materials

oral presentation

The general excitement born out of the ultrafast clock caused rush of new ideas, new materials, and new instruments. One feat in particular has been draining a lot of effort, namely the control of materials with an ultrashort laser pulse. There is ample evidence now that materials can be directed between different macroscopic states by using appropriate electronic, or structural, excitations....

89. In situ investigation of the mechanical properties of silk and optically switchable silk with neutron and X-ray scattering

Prof. Martin Müller (Helmholtz-Zentrum Geesthacht)

08/07/2015, 10:10

The biological structural material silkworm silk combines high extensibility with high mechanical strength. The key to silk's unique mechanical properties lies in the microstructure of this protein fibre with nanocrystals embedded in a softer, disordered matrix. On the basis of results of novel in situ experiments using the techniques of mechanical relaxation [1], neutron spectroscopy [1],...

53. Photo-isomerization in a model of ruthenium nitrosyl compound: two-step photon absorption process

Ms Liya Khadeeva (Institute of Physics of Rennes, University of Rennes 1), Prof. Marylise Buron-Le Cointe (Institute of Physics of Rennes, University of Rennes 1)

08/07/2015, 10:40

By means of visible absorption spectroscopy and X-Ray diffraction the photo-switching between the ground state nitrosyl (GS), isonitrosyl (SI) and side-on (SII) configurations under continuous light irradiation is studied in the [Ru(py)₄Cl(NO)](PF₆)₂.1/2H₂O system^[1]. It is a remarkable model compound in the family of systems containing...