4 papers · 1 filter
Diffuson-Dominated Thermal Transport Crossover from Ordered to Liquid-like CuBiS:The Negligible Role of Ion Hopping
Jincheng Yue, Jiongzhi Zheng, Xingchen Shen +7
Fundamentally understanding lattice dynamics and thermal transport behavior in liquid-like, partially occupied compounds remains a long-standing challenge in condensed matter physi…
Bidirectional Optimization onto Thermoelectric Performance via Hydrostatic-Pressure in Chalcopyrite AgXTe2 (X=In, Ga)
Siqi Guo, Jincheng Yue, Jiongzhi Zheng +5
Pressure tuning has emerged as a powerful strategy for manipulating the thermoelectric properties of materials by inducing structural and electronic modifications. Herein, we syste…
Hierarchical Characterization of Thermoelectric Performance in Copper-Based Chalcogenide CsCuS: Unveiling the role of Anharmonic Lattice Dynamics
Jincheng Yue, Jiongzhi Zheng, Junda Li +4
We explicitly consider both phonon energy shifts and broadening arising from both cubic and quartic anharmonicities, as well as diagonal/non-diagonal terms of heat flux operators i…
Ultra-low glassy thermal conductivity and controllable, promising thermoelectric properties in crystalline o-CsCu5S3
Jincheng Yue, Jiongzhi Zheng, Junda Li +5
We thoroughly investigate the microscopic mechanisms of the thermal transport in orthorhombic \textit{o}-CsCuS by integrating the first-principles-based self-consistent pho…