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Physical Review B (Condensed Matter and Materials Physics -1(II)) Phys. Rev. B 71, 020403(R) (2005) (4 pages)

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Correlated magnetic reversal in periodic stripe patterns

Katharina Theis-Bröhl, Boris P. Toperverg, Vincent Leiner, Andreas Westphalen, and Hartmut Zabel

Department of Physics, Ruhr-University Bochum, 44780 Bochum, Germany

Jeffrey McCord

Leibniz Institute for Solid State and Materials Research Dresden, Institute for Metallic Materials, Helmholtzstr. 20, D-01169 Dresden, Germany

Karsten Rott and Hubert Brückl

Department of Physics, University Bielefeld, Universitätsstr. 25, 33615 Bielefeld, Germany

(Received 19 November 2004; published 19 January 2005)

The magnetization reversal in a periodic magnetic stripe array has been studied with a combination of direct and reciprocal space methods: Kerr microscopy and polarized neutron scattering. Kerr images show that during magnetization reversal over a considerable magnetic-field range a ripple domain state occurs in the stripes with magnetization components perpendicular to the stripes. Quantitative analysis of polarized neutron specular reflection, Bragg diffraction, and off-specular diffuse scattering provides a detailed picture of the mean magnetization direction in the ripple domains as well as longitudinal and transverse fluctuations, and reveals a strong correlation of those components over a number of stripes. ©2005 The American Physical Society

URL: http://link.aps.org/abstract/PRB/v71/e020403
doi:10.1103/PhysRevB.71.020403
PACS: 75.75.+a, 61.12.Ha, 75.60.Ej        Additional Information

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