Speaker
Urs Staub
(PSI)
Description
Different cases are presented on how ultrafast x-ray pulses can be used to study ultrafast dynamics in correlated electron systems. It is shown how an optical excitation can drive an electronic transition and its perspective to drive it by direct phonon excitation. In addition, it is shown how we can increase a structural order parameter with an electronic excitation in a simple perovskite and how we can upconvert phonons in SrTiO3 by driving its soft mode resonantly.
Author
Urs Staub
(PSI)
