Phys. Rev. Lett. 102, 247204 (2009) [4 pages]Pseudospin Valve in Bilayer Graphene: Towards Graphene-Based PseudospintronicsReceived 9 March 2009; published 18 June 2009 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. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.247204
DOI:
10.1103/PhysRevLett.102.247204
PACS:
85.75.−d, 75.47.Pq, 75.70.Ak
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