Pseudospin valve in bilayer graphene: towards graphene-based pseudospintronics

Abstract

We propose a non-magnetic, pseudospin-based version of a spin valve, in which the pseudospin polarization in neighboring regions of a graphene bilayer is controlled by external gates. Numerical calculations demonstrate a large on-off ratio of such a device. This finding holds promise for the realization of pseudospintronics: a form of electronics based upon the manipulation of pseudospin analogous to the control of physical spin in spintronics applications.

Published version, 4 pages, 3 figures

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• Quantum transport of pseudospin-polarized Dirac fermions in gapped graphene nanostructures