Edgetronic and spintronic applications of carbon phosphide nanoribbon*

Carbon phosphide (CP) monolayer, a hybrid of graphene and phosphorene that simultaneously preserves their high electrical mobility, finite band gap and air stability, has been successfully synthesized in recent experiment. In this work, we study the electronic and transport properties of CP nanoribbons in α-phase with different edge configurations using first-principle density functional theory simulation. We found that Zα-CPNRs can mimic the behaviors of graphene and phosphorene nanoribbon depending on the edge configurations Intriguingly, when the external electric field exceeds a critical value, the charge transport channel becomes strongly localized to only one edge, and the edge localization can be tuned by an external electric field, thus opening up a new device concept of edgetronics. Our findings reveal the potential of CP nanoribbon as a spintronic materials that fuses the strengths of both graphene and phosphorene.
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