Magnetic Anisotropy of Fe Films in MgO/Cu(tCu)/Fe/Cu Systems |
| J. Baszyński and T. Toliński Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland |
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| Ferromagnetic resonance was employed to study the magnetic anisotropy of the Fe thin film in the MgO/Cu(tCu)/Fe/Cu system. The Fe film showed strong fourfold cubic anisotropy (HK1 = 2K1/M = 46.15 kA/m) for tFe = 23 nm and tCu = 0. The spread of the crystallographic axes Δβ = 0.5° was evaluated from the angular dependence of the resonance line width ΔHpp (4.4 < ΔHpp < 6.4 kA/m). Such a small mosaicity confirmed the epitaxial growth of the Fe film. The Cu buffer layer destroys this growth of the Fe film which showed only a weak anisotropy. |
| DOI: 10.12693/APhysPolA.91.245 PACS numbers: 73.20.Mf, 74.25.-q, 78.30.-j |