Infinite magnetoresistance of magnetic multilayers

Details Infinite magnetoresistance of magnetic multilayers Infinite magnetoresistance of magnetic multilayers

1999-01-07

arxiv.org/abs/cond-mat/9901052v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 page, 4 figures

Scientific paper

We examine transport properties of a magnetic superlattice with current perpendicular to the planes. In the limit that the phase-breaking and spin flip scattering lengths are greater than the system size, a multiple-scattering approach is used to calculate the 4-probe conductance. We show that by tuning the strength of tunnel barriers placed between the current and voltage probes giant magnetoresistance ratios of arbitrary strength and size are achievable.

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