Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene
oleh: Long Ju, Lei Wang, Xiao Li, Seongphill Moon, Mike Ozerov, Zhengguang Lu, Takashi Taniguchi, Kenji Watanabe, Erich Mueller, Fan Zhang, Dmitry Smirnov, Farhan Rana, Paul L. McEuen
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2020-06-01 |
Deskripsi
Optical transitions between Landau levels (LL) in solids are described by selection rules associated with the LL index. Here, the authors perform photocurrent spectroscopy measurements on high-quality bilayer graphene to investigate the interband LL transitions, and observe valley-dependent optical transitions obeying unusual selection rules.