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cond-mat.mtrl-sci2024★ 28 cited
Ultralow Lattice Thermal Conductivity in Complex Structure Cu26V2Sn6Se32 due to Interaction of Low-Frequency Acoustic-Optical Phonons
Kewal Singh Rana, Debattam Sarkar, Nidhi +4
Damping of phonon momentum suppresses the lattice thermal conductivity (kl) through low energy acoustic-optical phonon interactions. We studied the thermal transport properties and…
cond-mat.mtrl-sci2023
Interaction of Acoustic and Optical Phonons in Soft Bonded Cu-Se Framework of Large Unit Cell Minerals with Anionic Disorders
Kewal Singh Rana, Raveena Gupta, Debattam Sarkar +6
Large unit cell copper-chalcogenide based minerals with high crystalline anharmonicity have a potential for thermoelectric applications owing to their inherent poor lattice thermal…