An anomalous Corridor impact in edge-bonded monolayer graphene

An anomalous Corridor impact (AHE) is often presumed to be absent in pristine graphene because of its diamagnetism. On this work, we report {that a} gate-tunable Corridor resistance Rxy could be obtained in edge-bonded monolayer graphene with out an exterior magnetic subject. In a perpendicular magnetic subject, Rxy consists of a sum of two phrases: one from the atypical Corridor impact and the opposite from the AHE (RAHE). Plateaus of Rxy ∼ 0.94h/3e2 and RAHE ∼ 0.88h/3e2 have been noticed whereas the longitudinal resistance Rxx decreases at a temperature of two Ok, that are indications of the quantum model of the AHE. At a temperature of 300 Ok, Rxx reveals a optimistic, big magnetoresistance of ∼177% and RAHE nonetheless has a price of ∼400 Ω. These observations point out the existence of a long-range ferromagnetic order in pristine graphene, which can result in new functions in pure carbon-based spintronics.

Graphical abstract: An anomalous Hall effect in edge-bonded monolayer graphene

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