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  • 1
    Electronic Resource
    Electronic Resource
    Exchange anisotropy in epitaxial NiO(001)-fcc Co bilayers (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 87 (2000), S. 4936-4938 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have sputter deposited NiO–Co bilayers on MgO (001) substrates. NiO grows epitaxially on MgO at 800 °C and subsequently room temperature deposited Co films have a fcc crystal structure in epitaxy with the oxide underlayer. Bias fields higher than 700 Oe at 5 K were reported. Polar Kerr effect measurements evidence saturation fields for perpendicular magnetization up to 15 T at low temperature, proof for a strong NiO–Co exchange interaction. The formation of a domain wall in the Co layer is a possible mechanism for such large saturation fields. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.373208
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    Adjustable ferromagnetic resonance frequency in CoO/CoFeB system (2015)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2015-01-17
    Description: Static and dynamic properties of (CoO/CoFeB) n multilayers have been investigated. An anisotropy field enhancement was evidenced when the CoO layer was deposited under the CoFeB layer. Tuning the relative CoFeB and CoO layers thicknesses, high ferromagnetic resonance frequencies up to 4 GHz were achieved. The coupling effect between the CoO and CoFeB layers was induced by a dipolar coupling due to the anisotropic roughness topology of the CoO layer. This anisotropic roughness was induced by the deposition geometry and evidenced by atomic force microscopy. The strength of the dipolar interfacial coupling was calculated thanks to Schlömann's model. Multilayer stacks were fabricated and the magnetic properties observed for the trilayers could be maintained.
    Print ISSN: 0021-8979
    Electronic ISSN: 1089-7550
    Topics: Physics
    Published by American Institute of Physics (AIP)
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