66 citations · 210 across the 9 of their papers we have counts for
9 papers
Exploring the Charge Density Wave phase of 1-TaSe: Mott or Charge-transfer Gap?
C. J. Sayers, G. Cerullo, Y. Zhang +8
1-TaSe is widely believed to host a Mott metal-insulator transition in the charge density wave (CDW) phase according to the spectroscopic observation of a band gap that exte…
Spectrally resolving the phase and amplitude of coherent phonons in the charge density wave state of 1-TaSe
Charles J. Sayers, Stefano Dal Conte, Daniel Wolverson +4
The excitation and detection of coherent phonons has given unique insights into condensed matter, in particular for materials with strong electron-phonon coupling. We report a stud…
Disentangling Electronic, Lattice and Spin Dynamics in the Chiral Helimagnet Cr1/3NbS2
N. Sirica, H. Hedayat, D. Bugini +7
We investigate the static and ultrafast magneto-optical response of the hexagonal chiral helimagnet above and below the helimagnetic ordering temperature. The pre…
Site-specific symmetry sensitivity of angle-resolved photoemission spectroscopy in layered palladium diselenide
M. Cattelan, C. J. Sayers, D. Wolverson +1
Two-dimensional (2D) materials with puckered layer morphology are promising candidates for next-generation opto-electronics devices owing to their anisotropic response to external…
Investigation of the Non-equilibrium State of Strongly Correlated Materials by Complementary Ultrafast Spectroscopy Techniques
Hamoon Hedayat, Charles J. Sayers, Arianna Ceraso +6
Photoinduced non-thermal phase transitions are new paradigms of exotic non-equilibrium physics of strongly correlated materials. An ultrashort optical pulse can drive the system to…
Coherent phonons and the interplay between charge density wave and Mott phases in 1-TaSe
C. J. Sayers, H. Hedayat, A. Ceraso +9
1-TaSe is host to coexisting strongly-correlated phases including charge density waves (CDWs) and an unusual Mott transition at low temperature. Here, we investigate coher…