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Damping phenomena in Co90Fe10/Ni multilayers and alloys



Justin M. Shaw, Hans T. Nembach, Thomas J. Silva


We used perpendicular ferromagnetic resonance to measure the damping parameter in Co90Fe10/Ni multilayers over a wide range of layer thicknesses. The magnetic anisotropy within this range varied from in-pane to out-of-plane. We measured (Co90Fe10)xNi1-x alloys of identical thicknesses over the same compositional range of Co90Fe10 and Ni in order to isolate the influence of the multilayer structure. The damping parameter varied from 0.004 to 0.030 and depended only on the relative amounts of Co90Fe10 and Ni and was independent of the magnetic anisotroy and layer structure.
Applied Physics Letters


Ferromagnetic resonance, Perpendicular anisotropy, magnetic multilayers, magnetic films, damping


Shaw, J. , Nembach, H. and Silva, T. (2011), Damping phenomena in Co<sub>90</sub>Fe<sub>10</sub>/Ni multilayers and alloys, Applied Physics Letters (Accessed May 27, 2024)


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Created July 6, 2011, Updated February 19, 2017