From the 1 of 15 linked papers with an AI index.
15 papers
Quasiparticle phono-conversion: filming carriers coalescing into excitons
Enrico Perfetto, Takumi Fukuda, Xing Zhu +12
The study uses ultrafast time- and momentum-resolved photoemission spectroscopy together with excitonic Bloch equations to directly observe how free electrons and holes in a monola…
Excitonic effects in the photocarriers dynamics of two-dimensional materials
Carlos Betancur, Gianluca Stefanucci, Enrico Perfetto
We investigate the role of excitonic correlations in shaping the ultrafast dynamics of photoexcited carriers in semiconductors. Conventional approaches describe relaxation within s…
Long-Lived Coherence between Incoherent Excitons revealed by Time-Resolved ARPES: An Exact Solution
Zhenlin Zhang, Wei Hu, Enrico Perfetto +1
We investigate the exciton dynamics in an exactly solvable two-band model for semiconductors. The model incorporates light-matter, electron-electron and electron-phonon interaction…
Excitonic Bloch equations from first principles
Gianluca Stefanucci, Enrico Perfetto
The ultrafast conversion of coherent excitons into incoherent excitons, as well as the subsequent exciton diffusion and thermalization, are central topics in current scientific res…
Excitonic Mott transition without population inversion
Oleg Dogadov, Armando Genco, Allison R. Cadore +12
Exciton dissociation via the excitonic Mott transition (EMT) governs the high-density optical response of semiconductors and sets fundamental limits for optoelectronic devices. The…
Ultrafast nonlinear Hall effect in black phosphorus
Maciej Dendzik, Andrea Marini, Samuel Beaulieu +9
The nonlinear Hall effect (NHE) is a recently discovered member of the Hall effect family in which the Hall voltage shows a nonlinear behavior when a transverse electric field is a…