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Ultrafast Spectroscopy on Correlated Systems (old)

Strongly correlated electron systems exhibit competitions between charge, lattice, spin and orbital degrees of freedom that have been extensively investigated with time-averaged techniques. Many physical properties, however, arise from the excitation out of the ground state into energetically higher states.

A slightly modified pump-probe setup that includes simultaneous measurement of both transmissivity and reflectivity is used to obtain time-resolved dielectric function of a solid state sample in a large energy range (1.2 – 3.5 eV). This allows us to study charge transfer processes and local crystal field modifications in a strongly correlated system, namely CuGeO3, that are induced by the pump pulse at 3.1 eV (400 nm) or 1.55 eV.
 

correlated
 

For further information you can contact:
Goran Zgrablić
Alberto Crepaldi
Last Updated on Monday, 07 July 2014 12:11