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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.…
cond-mat.mtrl-sci2020
The origin of the lattice thermal conductivity enhancement at the ferroelectric phase transition in GeTe
Đorđe Dangić, Olle Hellman, Stephen Fahy +1
The proximity to structural phase transitions in IV-VI thermoelectric materials is one of the main reasons for their large phonon anharmonicity and intrinsically low lattice therma…