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Examining electron-boson coupling using time-resolved spectroscopy
Michael Sentef, Alexander F. Kemper, Brian Moritz +3
Nonequilibrium pump-probe time domain spectroscopies can become an important tool to disentangle degrees of freedom whose coupling leads to broad structures in the frequency domain…
Doping Evolution of Oxygen K-edge X-ray Absorption Spectra in Cuprate Superconductors
C. -C. Chen, M. Sentef, Y. F. Kung +5
We study oxygen K-edge x-ray absorption spectroscopy (XAS) and investigate the validity of the Zhang-Rice singlet (ZRS) picture in overdoped cuprate superconductors. Using large-sc…
Mapping of the unoccupied states and relevant bosonic modes via the time dependent momentum distribution
A. F. Kemper, M. Sentef, B. Moritz +4
The unoccupied states of complex materials are difficult to measure, yet play a key role in determining their properties. We propose a technique that can measure the unoccupied sta…
Correlation tuned cross-over between thermal and nonthermal states following ultrafast transient pumping
B. Moritz, A. F. Kemper, M. Sentef +2
We examine electron-electron mediated relaxation following excitation of a correlated system by an ultrafast electric field pump pulse. The results reveal a dichotomy in the tempor…
Phase Fluctuations and the Absence of Topological Defects in Photo-excited Charge Ordered Nickelate
W. S. Lee, Y. D. Chuang, R. G. Moore +32
The dynamics of an order parameter's amplitude and phase determines the collective behaviour of novel states emerged in complex materials. Time- and momentum-resolved pump-probe sp…
Theoretical description of high-order harmonic generation in solids
A. F. Kemper, B. Moritz, J. K. Freericks +1
We consider several aspects of high-order harmonic generation in solids: the effects of elastic and inelastic scattering; varying pulse characteristics; and inclusion of material-s…