Suppression of Giant Magnetoresistance by a superconducting contact

Details Suppression of Giant Magnetoresistance by a superconducting contact Suppression of Giant Magnetoresistance by a superconducting contact

1999-01-29

arxiv.org/abs/cond-mat/9901347v1

Phys. Rev. Lett. 82, 004938 (1999)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures. Submitted to PRL

Scientific paper

10.1103/PhysRevLett.82.4938

We predict that current perpendicular to the plane (CPP) giant magnetoresistance (GMR) in a phase-coherent magnetic multilayer is suppressed when one of the contacts is superconducting. This is a consequence of a superconductivity-induced magneto-resistive (SMR) effect, whereby the conductance of the ferromagnetically aligned state is drastically reduced by superconductivity. To demonstrate this effect, we compute the GMR ratio of clean (Cu/Co)_nCu and (Cu/Co)_nPb multilayers, described by an ab-initio spd tight binding Hamiltonian. By analyzing a simpler model with two orbitals per site, we also show that the suppression survives in the presence of elastic scattering by impurities.

Affiliated with

Also associated with

No associations

Rating

Suppression of Giant Magnetoresistance by a superconducting contact 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 Suppression of Giant Magnetoresistance by a superconducting contact, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suppression of Giant Magnetoresistance by a superconducting contact will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-615472