Maximilian Eichberger

TL;DR: Effectively, the atomic motions that result from the optically induced change in the electronic spatial distribution are directly observed and the degree of cooperativity in the observed structural dynamics is remarkable and illustrates the importance of obtaining atomic-level perspectives of the processes directing the physics of strongly correlated systems.

TL;DR: The photoinduced transformation between a nearly commensurate and an incommensurate charge-density-wave phase in 1T-TaS(2) takes place on the picosecond time scale, orders of magnitude faster than previously observed for Commensurate-to-incommensurate transitions.

TL;DR: The dynamics of the photoinduced commensurate-to-incommensurate charge density wave (CDW) phase transition in 4H(b)-TaSe(2) are investigated by femtosecond electron diffraction and show a second-order character, in contrast to the first-order behavior in thermal equilibrium.

TL;DR: In this paper, a table-top femtosecond, non-relativistic, electron diffraction setup is combined with a low-jitter, photo-triggered streak camera to follow the optically induced structural dynamics in complex solids.

TL;DR: The results revealed first direct information on the order parameter dynamics of Charge Density Waves as well as on their photo-induced phase transition, ensuring no measurable alternation of sample properties.