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cond-mat.mtrl-sci2026
Generalized deformation potential and machine-learning approaches for electron-phonon coupling and thermoelectric transport in semiconductors
Ransell D'Souza, Ivana Savic
The ability to compute electron-phonon coupling from first principles, using density functional perturbation theory and interpolation techniques, has enabled predictive calculation…
cond-mat.mtrl-sci2021
Photo-induced plasmon-phonon coupling in PbTe
M. P. Jiang, M. Trigo, S. Fahy +19
We report the observation of photo-induced plasmon-phonon coupled modes in the group IV-VI semiconductor PbTe using Fourier-transform inelastic X-ray scattering at the Linac Cohere…
cond-mat.mtrl-sci2021
Electron-phonon coupling and electronic thermoelectric properties of n-type PbTe driven near the soft-mode phase transition via lattice expansion
Jiang Cao, Đorđe Dangić, José D. Querales-Flores +2
IV-VI materials are some of the most efficient bulk thermoelectric materials due to their proximity to soft-mode phase transitions, which leads to low lattice thermal conductivity.…