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Characterization of magnons created inside the bulk and at the surface of ferromagnetic multilayer \(\text {Co}_{1-x}\text {Fe}_{x}/\text {Cu}\)

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Abstract

The presence of two types of spintronic carriers (magnons) populations created in volume and at the surface in the ferromagnetic \(\text {Co}_{1-x}\text {Fe}_{x}/\text {Cu}\) multilayer alloys was demonstrated. Their allowed creation bands, creation gaps, susceptibilities of creation and lifetimes were determined. The effect of magnetic layer thickness and surface anisotropy on the excitation spectra allowed to specify the nature (volume/surface) of the created carriers. A creation factor of surface magnons was introduced to calculate their characteristic properties where the obtained lifetimes and magnetization by spin were found to be in good agreement with experimental results.

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Authors and Affiliations

  1. Department of Physics, University Ibn Tofail, Campus BP. 242, Kenitra, 14000, Morocco

    Nadia Ait Labyad, Ahmed Qachaou, Atika Fahmi, Mounir Fahoume & Mohamed Lharch

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  1. Nadia Ait Labyad
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  2. Ahmed Qachaou
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  3. Atika Fahmi
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  4. Mounir Fahoume
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  5. Mohamed Lharch
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Correspondence to Nadia Ait Labyad.

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Ait Labyad, N., Qachaou, A., Fahmi, A. et al. Characterization of magnons created inside the bulk and at the surface of ferromagnetic multilayer \(\text {Co}_{1-x}\text {Fe}_{x}/\text {Cu}\). Appl. Phys. A 128, 710 (2022). https://doi.org/10.1007/s00339-022-05755-y

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