Speaker
Fei Guo
Description
With an established model[1,2], we determine the attosecond photoemission time delay in the charge density wave material CuTe, by means of spin- and angle-resolved photoemission spectroscopy. While accessing absolute time delay information by measuring spin polarization as a function of binding energy, with its moderate correlation strength, this result constitutes a part of the study on the connection between correlation strength and time delay, along with SARPES measurements done on noncorrelated Cu and strongly correlated BSCCO.
Furthermore, we present a pump-probe ARPES experiment which visualizes the coherent phonon oscillation which is characteristic of a CDW state.
Author
Fei Guo
Co-authors
Dr
Eduardo Guedes
(PSI)
Mr
Lukas Hellbrück
(EPFL)
Dr
Michele Puppin
(EPFL)
Hugo Dil
(EPFL)
