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Abstract

Phys. Rev. B 73, 144428 (2006) (7 pages)

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Hard-axis magnetization behavior and the surface spin-flop transition in antiferromagnetic Fe/Cr(100) superlattices

J. Meersschaut,1,2 C. L'abbé,1 F. M. Almeida,1 J. S. Jiang,2 J. Pearson,2 U. Welp,2 M. Gierlings,3 H. Maletta,3 and S. D. Bader2

1Instituut voor Kern- en Stralingsfysica and INPAC, K.U.Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
2Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
3Hahn-Meitner Institut, Glienicker Strasse 100, 14109 Berlin, Germany

(Received 12 December 2005; published 25 April 2006)

We investigated the hard-axis magnetization behavior of a biaxial antiferromagnetic Fe/Cr(100) superlattice. We discovered a surface spin-flop transition that separates the field-induced nonsymmetric state at low fields and the symmetric twisted state at higher fields. We studied the transition via realistic model calculations using the Landau-Lifshitz equations of motion, via stray field observations using magneto-optic indicator film imaging, and via polarized-neutron reflectivity measurements.

©2006 The American Physical Society

URL: http://link.aps.org/abstract/PRB/v73/e144428

doi:10.1103/PhysRevB.73.144428

PACS: 75.70.Cn, 75.25.+z, 75.50.Ee, 75.60.-d

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