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Title: Pinned magnetization in the antiferromagnet and ferromagnet of an exchange bias system

Abstract

Using polarized neutron reflectometry, we obtained separate depth profiles for pinned and unpinned magnetization across the interface of a ferromagnet/antiferromagnet bilayer as a function of the sign of exchange bias. The pinned and unpinned magnetization depth profiles are nonuniform and extend well beyond the chemical interface, suggesting an interfacial region magnetically distinct from its surroundings. A model that includes pinned and unpinned moments in the ferromagnet and antiferromagnet is developed for a complete description of the data.

Authors:
;  [1]; ; ; ;  [2];  [1];  [3]
  1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  2. Department of Physics, University of California at San Diego, La Jolla, California 92093 (United States)
  3. (United States)
Publication Date:
OSTI Identifier:
20951522
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics; Journal Volume: 75; Journal Issue: 21; Other Information: DOI: 10.1103/PhysRevB.75.214412; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANTIFERROMAGNETISM; DEPTH; EXCHANGE INTERACTIONS; FERROMAGNETISM; INTERFACES; MAGNETIC MOMENTS; MAGNETIZATION; NEUTRONS

Citation Formats

Fitzsimmons, M. R., Kirby, B. J., Roy, S., Li Zhipan, Roshchin, Igor V., Schuller, Ivan K., Sinha, S. K., and Department of Physics, University of California at San Diego, La Jolla, California 92093. Pinned magnetization in the antiferromagnet and ferromagnet of an exchange bias system. United States: N. p., 2007. Web. doi:10.1103/PHYSREVB.75.214412.
Fitzsimmons, M. R., Kirby, B. J., Roy, S., Li Zhipan, Roshchin, Igor V., Schuller, Ivan K., Sinha, S. K., & Department of Physics, University of California at San Diego, La Jolla, California 92093. Pinned magnetization in the antiferromagnet and ferromagnet of an exchange bias system. United States. doi:10.1103/PHYSREVB.75.214412.
Fitzsimmons, M. R., Kirby, B. J., Roy, S., Li Zhipan, Roshchin, Igor V., Schuller, Ivan K., Sinha, S. K., and Department of Physics, University of California at San Diego, La Jolla, California 92093. Fri . "Pinned magnetization in the antiferromagnet and ferromagnet of an exchange bias system". United States. doi:10.1103/PHYSREVB.75.214412.
@article{osti_20951522,
title = {Pinned magnetization in the antiferromagnet and ferromagnet of an exchange bias system},
author = {Fitzsimmons, M. R. and Kirby, B. J. and Roy, S. and Li Zhipan and Roshchin, Igor V. and Schuller, Ivan K. and Sinha, S. K. and Department of Physics, University of California at San Diego, La Jolla, California 92093},
abstractNote = {Using polarized neutron reflectometry, we obtained separate depth profiles for pinned and unpinned magnetization across the interface of a ferromagnet/antiferromagnet bilayer as a function of the sign of exchange bias. The pinned and unpinned magnetization depth profiles are nonuniform and extend well beyond the chemical interface, suggesting an interfacial region magnetically distinct from its surroundings. A model that includes pinned and unpinned moments in the ferromagnet and antiferromagnet is developed for a complete description of the data.},
doi = {10.1103/PHYSREVB.75.214412},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 21,
volume = 75,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2007},
month = {Fri Jun 01 00:00:00 EDT 2007}
}