5 papers · 1 filter
Crystal-symmetry-based selection rules for anharmonic phonon-phonon scattering from a group theory formalism
Runqing Yang, Shengying Yue, Yujie Quan +1
Anharmonic phonon-phonon scattering serves a critical role in heat conduction in solids. Previous studies have identified many selection rules for possible phonon-phonon scattering…
Phonon softening near topological phase transitions
Shengying Yue, Bowen Deng, Yanming Liu +3
Topological phase transitions occur when the electronic bands change their topological properties, typically featuring the closing of the bandgap. While the influence of topologica…
Soft phonons and ultralow lattice thermal conductivity in the Dirac semimetal Cd3As2
Shengying Yue, Hamid T. Chorsi, Manik Goyal +7
Recently, Cd3As2 has attracted intensive research interest as an archetypical Dirac semimetal, hosting three-dimensional linear-dispersive electronic bands near the Fermi level. Pr…
Controlling Thermal Conductivity of Two-dimensional Materials via Externally Induced Phonon-Electron Interaction
Sheng-Ying Yue, Runqing Yang, Bolin Liao
Phonon scattering by electrons, or "phonon-electron scattering", has been recognized as a significant scattering channel for phonons in materials with high electron concentration,…
Hydrodynamic Phonon Transport Perpendicular to Diffuse-Gray Boundaries
Runqing Yang, Shengying Yue, Bolin Liao
In this paper, we examine the application of an ideal phonon-hydrodynamic material as the heat transfer medium between two non-hydrodynamic contacts with a finite temperature diffe…