Ultralow lattice thermal conductivity of binary compounds A<sub>2</sub>B (A = Cs, Rb & B = Se, Te) with higher-order anharmonicity correction
Shuming Zeng, Lei Fang, Yusong Tu, M. Zulfiqar, Geng Li
Abstract
By employing first-principles calculations that integrate self-consistent phonon theory and the Boltzmann transport equation, we have delved into the thermal transport characteristics of hexagonal anisotropic materials A 2 B (A = Cs, Rb and B = Se, Te).
Topics & Concepts
AnharmonicityThermal conductivityBoltzmann equationThermoelectric materialsPhononCondensed matter physicsAnisotropyThermoelectric effectMaterials scienceLattice (music)Thermal diffusivityThermodynamicsChemistryPhysicsQuantum mechanicsAcousticsAdvanced Thermoelectric Materials and DevicesThermal properties of materialsThermal Expansion and Ionic Conductivity