Interlayer exchange coupling and giant magnetoresistance in Fe/V (001) superlattices

Details Interlayer exchange coupling and giant magnetoresistance in Fe/V (001) superlattices Interlayer exchange coupling and giant magnetoresistance in Fe/V (001) superlattices

2001-11-14

arxiv.org/abs/cond-mat/0111255v1

Phys. Rev. B 65, 214430 (2002)

Physics

Condensed Matter

Materials Science

REVTeX 4 style; 8 pages, 7 figures. The TEM picture (Fig. 3) is also included in GIF format (TEM.gif)

Scientific paper

10.1103/PhysRevB.65.214430

Magnetization and magnetoresistivity studies of Fe/V (001) superlattices are reported. The first giant magnetoresistance peak with respect to the vanadium and iron layer thicknesses is investigated. The interlayer antiferromagnetic coupling strength is found to show a peak at a vanadium layer thickness of 13 atomic monolayers ($\approx$ 20 \AA) with a full width at half maximum of about 2 monolayers. The antiferromagnetic coupling shows a maximum at an iron layer thickness of about 6 monolayers ($\approx$ 9 \AA) for series of superlattices with vanadium thicknesses around 13 monolayers. The magnitude of the giant magnetoresistance shows a similar variation as the antiferromagnetic coupling strength.

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