Infinite magnetoresistance of magnetic multilayers

R. Seviour; S. Sanvito; C. J. Lambert; J. H. Jefferson

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arXiv · cond-mat/9901052

Infinite magnetoresistance of magnetic multilayers

R. Seviour·S. Sanvito·C. J. Lambert·J. H. Jefferson

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Abstract

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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R. Seviour, S. Sanvito, C. J. Lambert, J. H. Jefferson. 1999-01-07. Infinite magnetoresistance of magnetic multilayers. https://arxiv.org/abs/cond-mat/9901052

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