High-temperature coercivity and Kerr spectroscopy on MnBi/Al multilayers

U. Rüdiger, J. Köhler, A. D. Kent, T. Legero, J. Kübler, P. Fumagalli, G. Güntherodt

    Research output: Contribution to journalArticle

    Abstract

    The magneto-optic properties of multilayered MnBi/Al films have been investigated and compared to pure MnBi films. The Al interlayers act as diffusion barrier during the MnBi formation process leading to a reduced MnBi particle size of approximately 50 nm. The smaller particle size changes the dominant magnetization reversal process from domain wall movement towards coherent rotation. This leads to a suppression of the anomalous increase of the high-temperature coercivity observed in pure MnBi. The comparison of the experimental polar Kerr spectra with theory elucidates the role of oxygen in MnBi films.

    Original languageEnglish (US)
    Pages (from-to)131-133
    Number of pages3
    JournalJournal of Magnetism and Magnetic Materials
    Volume198
    DOIs
    StatePublished - Jun 1 1999

    Fingerprint

    Coercive force
    coercivity
    Multilayers
    Spectroscopy
    Particle size
    spectroscopy
    Magnetization reversal
    Magnetooptical effects
    Diffusion barriers
    Domain walls
    magneto-optics
    Temperature
    domain wall
    interlayers
    retarding
    Oxygen
    magnetization
    oxygen

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Rüdiger, U., Köhler, J., Kent, A. D., Legero, T., Kübler, J., Fumagalli, P., & Güntherodt, G. (1999). High-temperature coercivity and Kerr spectroscopy on MnBi/Al multilayers. Journal of Magnetism and Magnetic Materials, 198, 131-133. https://doi.org/10.1016/S0304-8853(98)01011-7

    High-temperature coercivity and Kerr spectroscopy on MnBi/Al multilayers. / Rüdiger, U.; Köhler, J.; Kent, A. D.; Legero, T.; Kübler, J.; Fumagalli, P.; Güntherodt, G.

    In: Journal of Magnetism and Magnetic Materials, Vol. 198, 01.06.1999, p. 131-133.

    Research output: Contribution to journalArticle

    Rüdiger, U, Köhler, J, Kent, AD, Legero, T, Kübler, J, Fumagalli, P & Güntherodt, G 1999, 'High-temperature coercivity and Kerr spectroscopy on MnBi/Al multilayers', Journal of Magnetism and Magnetic Materials, vol. 198, pp. 131-133. https://doi.org/10.1016/S0304-8853(98)01011-7
    Rüdiger, U. ; Köhler, J. ; Kent, A. D. ; Legero, T. ; Kübler, J. ; Fumagalli, P. ; Güntherodt, G. / High-temperature coercivity and Kerr spectroscopy on MnBi/Al multilayers. In: Journal of Magnetism and Magnetic Materials. 1999 ; Vol. 198. pp. 131-133.
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    AU - Köhler, J.

    AU - Kent, A. D.

    AU - Legero, T.

    AU - Kübler, J.

    AU - Fumagalli, P.

    AU - Güntherodt, G.

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