Anharmonic lattice dynamics in thermoelectric PbTe under high pressure
Thermoelectric materials such as PbTe are interesting for energy applications as they can transform heat into useful electricity. Here, we propose to finish our investigation of the anomalous lattice dynamics of PbTe under high pressure. Our previous experiment at ILL shows a non-monotonic pressure dependence of phonon properties around p = 2.5 GPa and generally reduced phonon linewidth at high pressures. Results at additional pressure values are needed to confirm the non-monotonic pressure dependence of the phonon properties indicated by the current data. Comparison of the anticipated results with molecular dynamics simulations for the lattice dynamics will provide a detailed understanding of the intriguing lattice dynamical properties of PbTe, and, pave the path for the designs of new high-performance thermoelectric materials requiring a low lattice contribution to the thermal conductivity.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
WEBER Frank; IVANOV Alexandre; KLOTZ Stefan; LI Zehua and Xingchen Shen. (2021). Anharmonic lattice dynamics in thermoelectric PbTe under high pressure. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-01-552
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This data is not yet public
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