Nonlinear electron-phonon interactions drive light-induced symmetry switching in charge-density waves, as captured by a new first-principles simulation framework that reproduces key experimental features in TiSe2.
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cond-mat.mtrl-sci 2years
2026 2verdicts
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Kinetic modeling demonstrates that electron-electron and electron-phonon scattering each suffice to thermalize hot-electron distributions along distinct trajectories, with comparable timescales at weak excitations.
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Nonlinear electron-phonon coupling drives light-induced symmetry switching in charge-density waves
Nonlinear electron-phonon interactions drive light-induced symmetry switching in charge-density waves, as captured by a new first-principles simulation framework that reproduces key experimental features in TiSe2.
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Competing thermalization pathways of photoexcited hot electrons
Kinetic modeling demonstrates that electron-electron and electron-phonon scattering each suffice to thermalize hot-electron distributions along distinct trajectories, with comparable timescales at weak excitations.