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Phys. Rev. B 65, 012412 (2002) (4 pages)

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Interfacially dominated giant magnetoresistance in Fe/Cr superlattices

J. Santamaria,¹ M.-E. Gomez,¹ M.-C. Cyrille,¹ C. Leighton,¹ Kannan M. Krishnan,² 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. ©2001 The American Physical Society

URL: http://link.aps.org/abstract/PRB/v65/e012412
DOI: 10.1103/PhysRevB.65.012412
PACS: 75.70.Cn, 75.70.Pa        Additional Information

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