Ultrafast non-excitonic valley Hall effect in MoS2/WTe2 heterobilayers
oleh: Jekwan Lee, Wonhyeok Heo, Myungjun Cha, Kenji Watanabe, Takashi Taniguchi, Jehyun Kim, Soonyoung Cha, Dohun Kim, Moon-Ho Jo, Hyunyong Choi
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2021-03-01 |
Deskripsi
The valley Hall effect in 2D materials is a promising approach for future valleytronic applications, but it is usually based on excitons with short lifetimes. Here, spin polarized electrons are injected from WTe2 into MoS2, leading to a unipolar valley Hall effect with enhanced lifetimes and mobility.