66 citations · 244 across the 10 of their papers we have counts for
10 papers
Change in charge density wave order beyond the Lifshitz transition in 2H-Ta\textsubscript{1}S\textsubscript{2}
Mihir Date, Jan Berges, Enrico Da Como +6
We investigate electronic instabilities in 2H-TaS\textsubscript{2} and a self-intercalated variant, 2H-Ta\textsubscript{1+}S\textsubscript{2}. In conventional samples,…
Lifshitz transition enabling superconducting dome around the quantum critical point in TiSe
R. D. H. Hinlopen, Owen Moulding, Will Broad +9
Superconductivity often emerges as a dome around a quantum critical point (QCP) where long-range order is suppressed to zero temperature. So far, this has been mostly studied in ma…
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…
Observation of the charge density wave collective mode in the infrared optical response of VSe
Xuanbo Feng, Jans Henke, Corentin Morice +4
We present a detailed study of the bulk electronic structure of high quality VSe single crystals using optical spectroscopy. Upon entering the charge density wave phase below…
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…
Correlation between crystal purity and the charge density wave in 1-VSe
C. J. Sayers, L. S. Farrar, S. J. Bending +8
We examine the charge density wave (CDW) properties of 1-VSe crystals grown by chemical vapour transport (CVT) under varying conditions. Specifically, we find that by lowe…
Fermi surface reconstruction and electron dynamics at the charge-density-wave transition in TiSe2
Patrick Knowles, Bo Yang, Takaki Muramatsu +5
The evolution of the charge carrier concentrations and mobilities are examined across the charge-density-wave (CDW) transition in TiSe2. Combined quantum oscillation and magnetotra…
Excitonic and lattice contributions to the charge density wave in 1T-TiSe revealed by a phonon bottleneck
Hamoon Hedayat, Charles J. Sayers, Davide Bugini +10
Understanding collective electronic states such as superconductivity and charge density waves is pivotal for fundamental science and applications. The layered transition metal dich…