The Japan Society of Applied Physics

2023 International Conference on Solid State Devices and Materials

2023 International Conference on Solid State Devices and Materials

2023年9月5日 〜 2023年10月31日
Nagoya Congress Center

15:45 〜 16:00

[A-8-02] Dual gating and manipulation of the quantum valley currents in hBN/bilayer-graphene superlattices

○Takuya Iwasaki1, Yoshifumi Morita2, Kenji Watanabe1, Takashi Taniguchi1 (1. NIMS (Japan), 2. Gunma Univ. (Japan))

https://doi.org/10.7567/SSDM.2023.A-8-02

Valley currents, more generally “flavor” currents, in graphene superlattices are promising. Systematic engineering of the energy-band structure was demonstrated in our dual-gated hBN/bilayer-graphene superlattices. Quantum valley currents are detected and manipulated in our setting by non-local transport properties.