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Crossed Andreev reflection in topological insulator nanowire T junctions
- Source :
- Physical review B: Covering condensed matter and materials physics, 104(8):085415. American Institute of Physics
- Publication Year :
- 2021
- Publisher :
- American Physical Society (APS), 2021.
-
Abstract
- 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 3D BHZ model and compare the results with those from an effective 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 to model systems of micronsize, typical of experimental setups, but computationally too heavy for 3D models.<br />10 pages, 8 figures
- Subjects :
- Surface (mathematics)
Superconductivity
Physics
Range (particle radiation)
Condensed Matter - Mesoscale and Nanoscale Physics
Condensed matter physics
Condensed Matter - Superconductivity
ddc:530
Nanowire
FOS: Physical sciences
Observable
Nanowires, topological insulators, topological superconductors
530 Physik
Magnetic field
Andreev reflection
Superconductivity (cond-mat.supr-con)
Topological insulator
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Subjects
Details
- ISSN :
- 24699969 and 24699950
- Volume :
- 104
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi.dedup.....b8bc135e3275faae8504e1a394fcc594