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Regensburg 2013 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 1: Tutorial: Topological Insulators and Majorana-Fermion Physics

TT 1.2: Tutorial

Sunday, March 10, 2013, 16:50–17:35, H20

Proximity Induced Superconductivity in Topological Insulators — •Hartmut Buhmann — Physikalisches Institut, EP3, University Würzburg, Würzburg, Germany

The discovery of Dirac-like surface states on a topological insulator (TI) and their qualitative relation to Cooper-pairs in superconducters inspired the exploration of interactions between those two states. In 2008 L. Fu and C.L. Kane [1] showed that so-called Majorana bound states are expected to exists under certain conditions in the proximity of those interfaces. Since then many ideas for experimental investigations have been published but unfortunately none of those has been realized so far.

In this presentation I will summarize the important signature for the search for Majorana bound states in connection with topological insulators and I will report on recent results on proximity induced superconductivity in TI surface states.
[1] Liang Fu and C. L. Kane, Phys. Rev. Lett. 100, 096407 (2012)

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