[We-P] 2D materials

[We-P-41] Symmetry-Adapted Identification of Chiral Phonons in Transition Metal Dichalcogenide Heterostructures Using First-Principles Calculations

〇Aki Odawara^1,2, Atsuo Shitade², Emi Minamitani² (1. The Univ. of Osaka (Japan), 2. SANKEN (Japan))

Chiral phonons are rotating lattice vibrations that emerge in materials such as hexagonal boron nitride (h-BN) and transition metal dichalcogenides (TMDs). We develop a symmetry-adapted first-principles phonon calculations, enabling quantitative evaluation of angular momentum and predicting the existence of chiral phonons in MoSe₂/WSe₂.