Exchange Field Induced Magnetoresistance in Colossal Magnetoresistance Manganites

I. N. Krivorotov, K. R. Nikolaev, A. Yu. Dobin, A. M. Goldman, and E. Dan Dahlberg
Phys. Rev. Lett. 86, 5779 – Published 18 June 2001
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Abstract

The effect of an exchange field on the electrical transport in thin films of metallic ferromagnetic manganites has been investigated. The exchange field was induced both by direct exchange coupling in a ferromagnet/antiferromagnet multilayer and by indirect exchange interaction in a ferromagnet/paramagnet metallic superlattice. The electrical resistance of the metallic manganite layers was found to be determined by the magnitude of the vector sum of the effective exchange field and the external magnetic field.

  • Received 14 August 2000

DOI:https://doi.org/10.1103/PhysRevLett.86.5779

©2001 American Physical Society

Authors & Affiliations

I. N. Krivorotov, K. R. Nikolaev, A. Yu. Dobin, A. M. Goldman, and E. Dan Dahlberg

  • School of Physics and Astronomy, University of Minnesota, 116 Church St. SE, Minneapolis, Minnesota 55455

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Vol. 86, Iss. 25 — 18 June 2001

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