Physics – Condensed Matter – Superconductivity
Scientific paper
2006-11-06
Phys. Rev. B 74, 214512 (2006)
Physics
Condensed Matter
Superconductivity
Scientific paper
10.1103/PhysRevB.74.214512
Crossed Andreev reflection in multiterminal structures in the diffusive regime is addressed within the quasiclassical Keldysh-Usadel formalism. The elastic cotunneling and crossed Andreev reflection of quasiparticles give nonlocal currents and voltages (depending on the actual biasing of the devices) by virtue of the induced proximity effect in the normal metal electrodes. The magnitude of the nonlocal processes is found to scale with the square of the barrier transparency and to decay exponentially with interface spacing. Nonlocal cotunneling and crossed Andreev conductances are found to contribute equally to the nonlocal current, which is of relevance to the use of normal metal-superconducting heterostructures as sources of entanglement.
Brinkman Albert
Golubov Alexander A.
No associations
LandOfFree
Crossed Andreev reflection in diffusive contacts does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Crossed Andreev reflection in diffusive contacts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crossed Andreev reflection in diffusive contacts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-297089