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Berry Curvature Induced Valley Hall Effect in Non‐Encapsulated hBN/Bilayer Graphene Heterostructure Aligned with Near‐Zero Twist Angle

Abstract Valley Hall effect is observed in asymmetric single‐layer and bilayer graphene systems. In single‐layer graphene systems, asymmetry is introduced by aligning graphene with hexagonal boron nitride (hBN) with a near‐zero twist angle, breaking the sub‐lattice symmetry. Although a similar appro...

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Main Authors: Teppei Shintaku, Afsal Kareekunnan, Masashi Akabori, Kenji Watanabe, Takashi Taniguchi, Hiroshi Mizuta
Format: Artigo
Language:Inglês
Published: Wiley-VCH 2024-01-01
Series:Advanced Physics Research
Subjects:
bilayer graphene
hBN
valleytronics
Online Access:https://doi.org/10.1002/apxr.202300064
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