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Phys. Rev. Lett. 68, 859–862 (1992)

[Issue 6 – 10 February 1992 ]

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Roughness and giant magnetoresistance in Fe/Cr superlattices

Eric E. Fullerton, David M. Kelly, J. Guimpel, and Ivan K. Schuller

Department of Physics, 0319, University of California, San Diego, La Jolla, California 92093-0319

Y. Bruynseraede

Laboratorium voor Vaste Stof Fysika en Magnetisme, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium

We have performed detailed studies of the structure, magnetotransport, and magnetization of Fe/Cr superlattices as a function of systematic changes in interfacial roughness. The results clearly show that the giant magnetoresistance is enhanced by the presence of roughness. This fact indicates that interfacial roughness should be explicitly included in theoretical calculations and experimental characterization of superlattices exhibiting giant magnetoresistance.

©1992 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v68/p859
DOI: 10.1103/PhysRevLett.68.859
PACS: 73.50.Jt, 75.50.Rr, 75.70.Cn, 75.70.Fr

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