Faculté des sciences
pdf

Polarized Neutron Reflectivity Investigation of Periodic Magnetic Rings

Ogrin, F. Y. ; Weekes, S. M. ; Cubitt, B. ; Wildes, A. ; Drew, Alan J. ; Ross, C. A. ; Jung, W. ; Menon, R. ; Toperverg, B.

In: IEEE Transactions on Magnetics, 2007, vol. 43, no. 6, p. 2731 - 2733

Magnetic ring structures are of particular interest, due to stable remanent configurations such as the vortex state, which have potential in future magnetic random access memory (MRAM) applications. Here we report results on the first experimental study of periodic ring arrays using off-specular polarized neutron reflectivity (PNR). The experiments were performed on a 7.5 mmtimes5 mm NiFe array... Di più

Aggiungi alla tua lista
    Titre
    • Polarized Neutron Reflectivity Investigation of Periodic Magnetic Rings
    Auteur
    • Ogrin, F. Y.. School of Physics, University of Exeter, U.K.
    • Weekes, S. M.. School of Physics, University of Exeter, U.K.
    • Cubitt, B.. Institut Laue-Langevin, Grenoble, France
    • Wildes, A.. Institut Laue-Langevin, Grenoble, France
    • Drew, Alan J.. Group FK, Department of Physics, University of Fribourg, Switzerland
    • Ross, C. A.. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, USA
    • Jung, W.. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, USA
    • Menon, R.. Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, USA
    • Toperverg, B.. Institut Laue-Langevin, Grenoble, France - Petersburg Nuclear Physics Institute, Gatchina, Russia - Institut Laue-Langevin, Grenoble, France - Department of Solid State Physics IV, Ruhr-Universitaet-Bochum, Germany
    Type de document
    • Postprint
    Date de publication
    • 2007-06-01
    Classification
    • Physique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:20071024170046-WH
    Numéro de soumission
    • 20071024170046-WH
    Summary
    Magnetic ring structures are of particular interest, due to stable remanent configurations such as the vortex state, which have potential in future magnetic random access memory (MRAM) applications. Here we report results on the first experimental study of periodic ring arrays using off-specular polarized neutron reflectivity (PNR). The experiments were performed on a 7.5 mmtimes5 mm NiFe array with an average ring diameter of 3.2 mum, 0.7 mum width, 25 nm thickness, and separation of 5.6 mum. Using polarization analysis, a spin dependent diffraction of reflected and transmitted neutron beams were investigated as a function of external applied field