[19p-C202-1~17] 17.3 Layered materials

[19p-C202-2] [Young Scientist Presentation Award Speech] Exciton Hall effect in transition metal dichalcogenides

〇Masaru Onga¹, Yijin Zhang^2,3, Toshiya Ideue¹, Yoshihiro Iwasa^1,4 (1.Univ. of Tokyo, 2.Osaka Univ., 3.Max-Plank Inst., 4.RIKEN CEMS)

Keywords:transiton metal dichalcogenides, exciton, valleytronics

Monolayer transition metal dichalcogenides exhibit unique optical phenomena owing to the two-dimensional structure and valley degree of freedom. The valley-coupled excitons are expected to possess valley-contrasting Berry curvature, which gives rise the Hall effect of valley excitons without magnetic fields. We observed the exciton Hall effect and valley-contrasting exciton transport in a micrometer scale by using polarization-resolved photoluminescence mapping.