Crossed Andreev reflection in topological insulator nanowire T junctions

Jacob Fuchs*, Michael Barth, Cosimo Gorini, Inanç Adagideli, Klaus Richter

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
51 Downloads (Pure)


We numerically study crossed Andreev reflection (CAR) in a topological insulator nanowire T junction where one lead is proximitized by a superconductor. We perform realistic simulations based on the three-dimensional (3D) Bernevig-Hughes-Zhang model and compare the results with those from an effective two-dimensional (2D) surface model, whose computational cost is much lower. Both approaches show 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. Our effective 2D implementation allows us to model systems of micron size, typical of experimental setups but computationally too heavy for 3D models.

Original languageEnglish
Article number085415
JournalPhysical review B: Covering condensed matter and materials physics
Issue number8
Publication statusPublished - 12 Aug 2021


Dive into the research topics of 'Crossed Andreev reflection in topological insulator nanowire T junctions'. Together they form a unique fingerprint.

Cite this