Regensburg 2013 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 58: Poster Session Transport & Matter at Low Temperature

TT 58.18: Poster

Donnerstag, 14. März 2013, 15:00–19:00, Poster D

Spin-resolved scattering in bilayer graphene — •Linnéa Schätzle and Dario Bercioux — Freiburg Institute for Advanced Studies, Albert-Ludwigs-Universität, D-79104 Freiburg, Germany

Bilayer graphene in contrast to single layer graphene has a tunable bandgap. This makes it a promising material for a novel kind of field effect transistors. Electrons in bilayer graphene have high mobilities and long spin-relaxtion-lengths that makes it interesting for electronic applications [1].

We are interested in spin-resolved scattering through regions of inhomogeneous spin-orbit interactions. The spin-resolved scattering properties, for the case of single layer graphene with these spin-orbit barriers, are a function of the incident angle [2]. We show that the more complex band structure of bilayer graphene leads to similar results. These can be useful for the implementation of carbon-based spintronics devices.
[1] T.- Y. Yang et al., PRL 107, 047206 (2011)

[2] D. Bercioux and A. de Martino, Phys. Rev. B 81, 165410 (2010)