Observation of the polaronic character of excitons in a two-dimensional semiconducting magnet CrI3
oleh: Wencan Jin, Hyun Ho Kim, Zhipeng Ye, Gaihua Ye, Laura Rojas, Xiangpeng Luo, Bowen Yang, Fangzhou Yin, Jason Shih An Horng, Shangjie Tian, Yang Fu, Gongjun Xu, Hui Deng, Hechang Lei, Adam W. Tsen, Kai Sun, Rui He, Liuyan Zhao
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2020-09-01 |
Deskripsi
Exciton dynamics can be strongly affected by lattice vibrations through electron-phonon (e-ph) coupling. Here, the authors show the presence of strong e-ph coupling in bilayer CrI3 and observe a Raman feature with periodic broad modes up to the 8th order, attributed to the polaronic character of excitons.