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Dynamic response of permalloy/Cu/Co magnetoresistive sandwiches |
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| Authors: | J. -Ph. Jay J. Ben Youssef H. Le Gall |
| Affiliation: | Laboratoire de Magnétisme de Bretagne CNRS UPRESA 6135, Université de Bretagne Occidentale, 6, Avenue le Gorgeu, 29285 Brest, France |
| Abstract: | The dynamic response of trilayer magnetoresistive permalloy/Cu/Co films was studied by high-frequency permeability spectra measurements. The resonance frequency is shown to depend on the interlayer copper thickness. This dependence is related to exchange coupling between permalloy and cobalt and the interaction field is estimated using the Landau–Lifschitz–Gilbert model. |
| Keywords: | Susceptibility – frequency dependent Magnetoresistance – thin film Ferromagnetic resonance Exchange coupling |
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