Spin-resolved scattering through spin-orbit nanostructures in graphene

Article, Preprint English OPEN
Bercioux, D. ; De Martino, A. (2010)
  • Publisher: American Physical Society
  • Related identifiers: doi: 10.1103/PhysRevB.81.165410
  • Subject: QC | Condensed Matter - Mesoscale and Nanoscale Physics | Condensed Matter - Other Condensed Matter
    arxiv: Condensed Matter::Strongly Correlated Electrons

We address the problem of spin-resolved scattering through spin-orbit nanostructures in graphene, i.e., regions of inhomogeneous spin-orbit coupling on the nanometer scale. We discuss the phenomenon of spin-double refraction and its consequences on the spin polarization. Specifically, we study the transmission properties of a single and a double interface between a normal region and a region with finite spin-orbit coupling, and analyze the polarization properties of these systems. Moreover, for the case of a single interface, we determine the spectrum of edge states localized at the boundary between the two regions and study their properties.
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    1Freiburg Institute for Advanced Studies, Albert-Ludwigs-Universita¨t, D-79104 Freiburg, Germany

    2Physikalisches Institut, Albert-Ludwigs-Universita¨t, D-79104 Freiburg, Germany

    3Institut fu¨r Theoretische Physik, Universita¨t zu K¨oln, Zu¨lpicher Straße 77, D-50937 K¨oln, Germany

    (Dated: April 27, 2010)

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