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TT: Fachverband Tiefe Temperaturen

TT 25: Poster Session: Topology

TT 25.8: Poster

Thursday, September 30, 2021, 13:30–16:00, P

Crossed Andreev reflection in topological insulator nanowire T-junctions — •Jacob Fuchs¹, Michael Barth¹, Cosimo Gorini^1,2, Inanc Adagideli^3,4, and Klaus Richter¹ — ¹Institut für Theoretische Physik, Universität Regensburg, 93040 Regensburg, Germany — ²Université Paris-Saclay, CEA, CNRS, SPEC, 91191, Gif-sur-Yvette, France — ³Faculty of Engineering and Natural Sciences, Sabanci University, 34956 Orhanli-Tuzla, Turkey — ⁴Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente, 7500 AE Enschede, The Netherlands

We numerically study crossed Andreev reflection (CAR) in a topological insulator nanowire T-junction where one lead is proximitized by a superconductor. We find that CAR should be clearly observable in a wide parameter range, including perfect CAR in a somewhat more restricted range. Furthermore, it can be controlled by a magnetic field and is robust to disorder.