Journal Article

PreJuSER-52405

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Modulated magnetization depth profile in dipolarly coupled magnetic multilayers

Bedanta, S. ; Kentzinger, E.FZJ* ; Petracic, O. ; Kleemann, W. ; Rücker, U.FZJ* ; Brückel, T.FZJ* ; Paul, A.FZJ* ; Cardoso, S. ; Freitas, P. P.

2006
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/1181  doi:10.1103/PhysRevB.74.054426

Abstract: Polarized neutron reflectivity (PNR) and magnetometry studies have been performed on the metal-insulator multilayer [Co80Fe20(1.6 nm)/Al2O3(3 nm)](9) which exhibits dominant dipolar coupling between the ferromagnetic layers. Our PNR measurements at the coercive field reveal a novel and unexpected magnetization state of the sample, exhibiting an oscillating magnetization depth profile from CoFe layer to CoFe layer with a period of five bilayers along the multilayer stack. With the help of micromagnetic simulations we demonstrate that competition between long- and short-ranged dipolar interactions apparently gives rise to this unprecedented phenomenon.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Streumethoden (IFF-ISM)
2. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)

Research Program(s):

1. Kondensierte Materie (P54)
2. Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) (P55)

Appears in the scientific report 2006
Notes: This version is available at the following Publisher URL: http://prb.aps.org

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