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Issue 25, 2015

Symmetries of quantum transport with Rashba spin–orbit: graphene spintronics

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Abstract

The lack of some spatial symmetries in planar devices with Rashba spin–orbit interactions opens up the possibility of producing spin polarized electrical currents in the absence of external magnetic fields or magnetic impurities. We study how the direction of the spin polarization of the current is related to spatial symmetries of the device. As an example of these relations we study numerically the spin-resolved current in graphene nanoribbons. Different configurations are explored and analyzed to demonstrate that graphene nanoflakes may be used as excellent spintronic devices in an all-electrical setup.

Graphical abstract: Symmetries of quantum transport with Rashba spin–orbit: graphene spintronics

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Publication details

The article was received on 20 Mar 2015, accepted on 21 May 2015 and first published on 21 May 2015


Article type: Paper
DOI: 10.1039/C5CP01637A
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Phys. Chem. Chem. Phys., 2015,17, 16469-16475

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    Symmetries of quantum transport with Rashba spin–orbit: graphene spintronics

    L. Chico, A. Latgé and L. Brey, Phys. Chem. Chem. Phys., 2015, 17, 16469
    DOI: 10.1039/C5CP01637A

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