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Quantum Chemistry
Have Mysterious Topological Valley Currents Been Observed in Graphene Superlattices?
arXiv
Authors: Stephan Roche, Stephen R. Power, Branislav K. Nikolić, José Hugo García, Antti-Pekka Jauho
Year
2021
Paper ID
6790
Status
Preprint
Abstract Read
~2 min
Abstract Words
63
Citations
N/A
Abstract
We provide a critical discussion concerning the claim of topological valley currents, driven by a global Berry curvature and valley Hall effect proposed in recent literature. After pointing out a major inconsistency of the theoretical scenario proposed to interpret giant nonlocal resistance, we discuss various possible alternative explanations and open directions of research to solve the mystery of nonlocal transport in graphene superlattices.
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- This paper contributes to the Quantum Chemistry research area in the Quantum Articles archive.
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- We provide a critical discussion concerning the claim of topological valley currents, driven by a global Berry curvature and valley Hall effect proposed in recent literature.
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