Influence of a Cr seed layer on the magnetic anisotropy of epitaxial Fe/Ag films on MgO(001)

The magnetic anisotropy of epitaxial 300 Å thick Fe films on Ag and Ag/Cr buffer layers on MgO(001) has been studied by ferromagnetic resonance and magneto-optic Kerr effect measurements. The samples were grown by molecular beam epitaxy at ambient temperature. A reduction of the effective magnetizat...

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Veröffentlicht in:Applied physics. A, Materials science & processing Materials science & processing, 2008-08, Vol.92 (2), p.381-385
Hauptverfasser: Chemam, F., Lenz, K., Kuch, W.
Format: Artikel
Sprache:eng
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Zusammenfassung:The magnetic anisotropy of epitaxial 300 Å thick Fe films on Ag and Ag/Cr buffer layers on MgO(001) has been studied by ferromagnetic resonance and magneto-optic Kerr effect measurements. The samples were grown by molecular beam epitaxy at ambient temperature. A reduction of the effective magnetization for the samples with a Ag buffer layer is attributed to strain and dislocation formation as seen from X-ray diffraction measurements at low and high angles. In the samples with a Cr seed layer, a higher magnetic anisotropy is found which correlates with a reduced roughness.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-008-4535-x