Phys. Rev. B 65, 012412 (2001) [4 pages]

Interfacially dominated giant magnetoresistance in Fe/Cr superlattices

Abstract

References

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J. Santamaria^1,*, M.-E. Gomez^1,†, M.-C. Cyrille^1,‡, C. Leighton¹, Kannan M. Krishnan², and Ivan K. Schuller¹
¹Department of Physics, University of California–San Diego, La Jolla, California 92093-0319
²Materials Sciences Division, National Center for Electron Microscopy, Lawrence Berkeley Laboratory, University of California–Berkeley, Berkeley, California 94720

Received 14 August 2001; published 3 December 2001

We have performed an extensive comparative study of growth, structure, magnetization, and magnetotransport in Fe/Cr superlattices. A simple analysis of the experimental data shows that the giant magnetoresistance originates from interfacial scattering in the Fe/Cr system. The saturation resistivity is determined by the roughness lateral correlation length whereas the giant magnetoresistance is determined by the interface width.

URL:

http://link.aps.org/doi/10.1103/PhysRevB.65.012412

DOI:

10.1103/PhysRevB.65.012412

PACS:

75.70.Cn, 75.70.Pa

^*On leave from U. Complutense, 28040 Madrid, Spain. Email address: jacsan eucmax.sim.ucm.es

^†On leave from Universidad del Valle, A.A.25360 Cali, Colombia.

^‡Present address: IBM Almaden.

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Phys. Rev. B 65, 012412 (2001) [4 pages]

Interfacially dominated giant magnetoresistance in Fe/Cr superlattices