Tunable and giant valley-selective Hall effect in gapped bilayer graphene

Berry curvature is analogous to magnetic field but in momentum space and is commonly present in materials with nontrivial quantum geometry. It endows Bloch electrons with transverse anomalous velocities to produce Hall-like currents even in the absence of a magnetic field. We report the direct obser...

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Veröffentlicht in:	Science (American Association for the Advancement of Science) 2022-03, Vol.375 (6587), p.1398-1402
Hauptverfasser:	Yin, Jianbo, Tan, Cheng, Barcons-Ruiz, David, Torre, Iacopo, Watanabe, Kenji, Taniguchi, Takashi, Song, Justin C W, Hone, James, Koppens, Frank H L
Format:	Artikel
Sprache:	eng
Schlagworte:	Bilayers Current carriers Dance Electronic devices Electronic equipment Graphene Hall effect Optoelectronic devices Switches Topology Transition metal compounds Valleys
Online-Zugang:	Volltext
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