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Journal of Physics: Condensed Matter

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Journal of Physics: Condensed Matter Volume 12 Number 39 Create an alert RSS this journal

R Seviour et al 2000 J. Phys.: Condens. Matter 12 L621 doi:10.1088/0953-8984/12/39/102

Anomalous magnetoresistance of magnetic multilayers

R Seviour1, S Sanvito2, C J Lambert1 and J H Jefferson3

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Abstract References

LETTER TO THE EDITOR

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 tunnelling barriers placed between the current and voltage probes magnetoresistance ratios of arbitrary strength and sign are achievable.


PACS

75.47.De Giant magnetoresistance

75.70.Cn Magnetic properties of interfaces (multilayers, superlattices, heterostructures)

Subjects

Condensed matter: electrical, magnetic and optical

Surfaces, interfaces and thin films

Dates

Issue 39 (2 October 2000)

Received 11 July 2000, in final form 6 September 2000



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