Crossed Andreev reflection and spin-resolved non-local electron transport

Details Crossed Andreev reflection and spin-resolved non-local electron transport Crossed Andreev reflection and spin-resolved non-local electron transport

2011-10-17

arxiv.org/abs/1110.3654v1

Physics

Condensed Matter

Superconductivity

33 pages, 11 figures; chapter of the book "Fundamentals of Superconducting Electronics", Springer, 2011

Scientific paper

The phenomenon of crossed Andreev reflection (CAR) is known to play a key role in non-local electron transport across three-terminal normal-superconducting-normal (NSN) devices. Here we review our general theory of non-local charge transport in three-terminal disordered ferromagnet-superconductor-ferromagnet (FSF) structures. We demonstrate that CAR is highly sensitive to electron spins and yields a rich variety of properties of non-local conductance which we describe non-perturbatively at arbitrary voltages, temperature, degree of disorder, spin-dependent interface transmissions and their polarizations. We demonstrate that magnetic effects have different implications: While strong exchange field suppresses disorder-induced electron interference in ferromagnetic electrodes, spin-sensitive electron scattering at SF interfaces can drive the total non-local conductance negative at sufficiently low energies. At higher energies magnetic effects become less important and the non-local resistance behaves similarly to the non-magnetic case. Our results can be applied to multi-terminal hybrid structures with normal, ferromagnetic and half-metallic electrodes and can be directly tested in future experiments.

Affiliated with

Also associated with

No associations

Rating

Crossed Andreev reflection and spin-resolved non-local electron transport 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 and spin-resolved non-local electron transport, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crossed Andreev reflection and spin-resolved non-local electron transport will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-317786