Have mysterious topological valley currents been observed in graphene superlattices?
نویسندگان
چکیده
Abstract We provide a critical discussion concerning the claim of topological valley currents, driven by global Berry curvature and Hall effect proposed in recent literature. After pointing out major inconsistency theoretical scenario to interpret giant nonlocal resistance, we discuss various possible alternative explanations open directions research solve mystery transport graphene superlattices.
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ژورنال
عنوان ژورنال: JPhys materials
سال: 2022
ISSN: ['2515-7639']
DOI: https://doi.org/10.1088/2515-7639/ac452a