Bipolar spin-filtering and giant magnetoresistance effect in spin-semiconducting zigzag graphene nanoribbons
Ziqi Han, Hua Hao, Xiaohong Zheng, Zhi Zeng
Abstract
% achieved. In addition, in the parallel magnetic configurations, an ideal bipolar spin filtering effect is observed, making it flexible to switch the spin polarity of current by reversing the bias direction. All these features originate from the spin semiconducting behavior of the asymmetrically hydrogenated ZGNRs. The findings suggest that asymmetric edge hydrogenation provides an important way to construct multi-functional spintronic devices with ZGNRs.
Topics & Concepts
SpintronicsCondensed matter physicsZigzagGraphene nanoribbonsMaterials scienceMagnetoresistanceTunnel magnetoresistanceSpin (aerodynamics)GrapheneConductanceAntiparallel (mathematics)Density functional theoryGiant magnetoresistanceSpin polarizationFerromagnetismMagnetic fieldNanotechnologyPhysicsQuantum mechanicsElectronGeometryThermodynamicsMathematicsGraphene research and applicationsQuantum and electron transport phenomena2D Materials and Applications