Spintronics devices from bilayer graphene in contact to ferromagnetic insulators

Article

关键词: SPIN;    SUPERCONDUCTOR;    FIELD;    EUO;   

DOI  :  10.1103/PhysRevB.84.125438

来源: SCIE

【 摘 要 】

Graphene-based materials showpromise for spintronic applications due to their potentially large spin coherence length. On the other hand, because of their small intrinsic spin-orbit interaction, an external magnetic source is desirable in order to perform spin manipulation. Because of the flat nature of graphene, the proximity interaction with a ferromagnetic insulator (FI) surface seems a natural way to introduce magnetic properties into graphene. Exploiting the peculiar electronic properties of bilayer graphene coupled with FIs, we show that it is possible to devise very efficient gate-tunable spin rotators and spin filters in a parameter regime of experimental feasibility. We also analyze the composition of the two spintronic building blocks in a spin-field-effect transistor.

【 授权许可】

Free