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Author

Yi-Ming Pan

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Oct 2026

Long-lived nonequilibrium phonons in twisted Van der Waals heterostructures

Ultrafast electron diffraction (UED) measurements on twisted WSe2/MoSe2 heterobilayers reveal that zone-edge M-point phonons retain polarized, non-thermal populations with decay constants nearly twice the monolayer value. To uncover the microscopic scattering pathways governing these lifetimes, we developed a first-pri...

Johnathan D. Georgaras, F. D. da Jornada, Alexandra C. Zimmerman et al. · 0 citations

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