Pseudospin valve in bilayer graphene: towards graphene-based pseudospintronics.
We propose a nonmagnetic, 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.
San-Jose
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Department of Physics, Lancaster University, Lancaster, LA1 4YB, United Kingdom.
Prada
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McCann
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Schomerus
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