[Th-P] 2D matrials

[Th-P-18] Topological Origin of Large Optical Absorption in Obstructed Atomic Insulator h-TMDs

〇Seungil Baek¹, Jun Jung¹, Yong-Hyun Kim^1,2 (1. KAIST (Korea), 2. Suranaree Univ. of Tech. (Thailand))

We addressed the topological origin of the pronounced optical absorption in h-TMDs, where the obstructed atomic limit plays a pivotal role. Despite the d–d transition character, obstruction-driven parity inversion allows for a substantial dipole matrix element.