The 82nd JSAP Autumn Meeting 2021

Presentation information

Oral presentation

17 Nanocarbon Technology » 17.2 Graphene

[10p-N306-1~18] 17.2 Graphene

Fri. Sep 10, 2021 1:30 PM - 6:15 PM N306 (Oral)

Yasuhide Ohno(Tokushima univ), Moriyama Satoshi(Tokyo Denki Univ.)

2:00 PM - 2:15 PM

[10p-N306-3] Negative non-local resistance in twisted bilayer graphene/h-BN super-moiré lattice

Yuta Seo1, Satoru Masubuchi1, Rai Moriya1, Kenji Watanabe2, Takashi Taniguchi1,2, Tomoki Machida1,3 (1.IIS Univ. Tokyo, 2.NIMS, 3.CREST-JST)

Keywords:graphene, twisted bilayer graphene, Hall effect

We observed negative non-local resistance without magnetic fields at three-quarters (3/4) filling of the conduction and valence minibands in magic angle twisted bilayer graphene (θ~1.25°)/h-BN super-moiré lattice. Some studies have reported the observation of anomalous Hall effect and chiral edge transport at three-quarters (3/4) filling of the conduction miniband in magic angle twisted bilayer graphene aligned with h-BN, and it is possible that non-local negative resistance observed in this study is attributed to the anomalous Hall state and chiral edge transport.