Andreev drag effect via magnetic quasiparticle focusing in normal-superconductor nanojunctions

Abstract

We study a new hybrid normal-superconductor (NS) pi-junction in which the non-local current can be orders of magnitude larger than that in earlier proposed systems. We calculate the electronic transport of this NS hybrid when an external magnetic field is applied. It is shown that the non-local current exhibits oscillations as a function of the magnetic field, making the effect tunable with the field. The underlying classical dynamics is qualitatively discussed.

4 pages, 5 figures, minor changes in references, submitted to PRL

References in corpus (2)

• Current-current correlations in hybrid superconducting and normal metal multiterminal structures
• Andreev reflection and cyclotron motion at superconductor -- normal-metal interfaces

Cited by in corpus (8)

• A knitting algorithm for calculating Green functions in quantum systems
• Positive current cross-correlations in a highly transparent normal-superconducting beam splitter due to synchronized Andreev and inverse Andreev reflections
• Self-consistent microscopic calculations for non-local transport through nanoscale superconductors
• Nonlocal transport mediated by nonlocal Hikami boxes: Condensation of evanescent quasiparticles injected into the superconducting gap
• Magnetic focusing in normal-superconductor hybrid systems: a semiclassical analysis
• Non local Andreev reflection in a carbon nanotube superconducting quantum interference device
• Subgap tunneling via quantum-interference effect: insulators and charge density waves
• Imaging chiral Andreev reflection in the presence of Rashba spin-orbit coupling