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

doi:10.1016/S0304-8853(98)01011-7

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 journal › Conference article › peer-review

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 language	English (US)
Pages (from-to)	131-133
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	198
DOIs	https://doi.org/10.1016/S0304-8853(98)01011-7
State	Published - Jun 1 1999
Event	Proceedings of the 1998 3rd International Symposium on Metallic Multilayers (MML-98) - Vancouver, BC, Can Duration: Jun 14 1998 → Jun 19 1998

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/S0304-8853(98)01011-7

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title = "High-temperature coercivity and Kerr spectroscopy on MnBi/Al multilayers",

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.",

author = "U. R{\"u}diger and J. K{\"o}hler and Kent, {A. D.} and T. Legero and J. K{\"u}bler and P. Fumagalli and G. G{\"u}ntherodt",

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TY - JOUR

T1 - High-temperature coercivity and Kerr spectroscopy on MnBi/Al multilayers

AU - Rüdiger, U.

AU - Köhler, J.

AU - Kent, A. D.

AU - Legero, T.

AU - Kübler, J.

AU - Fumagalli, P.

AU - Güntherodt, G.

PY - 1999/6/1

Y1 - 1999/6/1

N2 - 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.

AB - 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.

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U2 - 10.1016/S0304-8853(98)01011-7

DO - 10.1016/S0304-8853(98)01011-7

M3 - Conference article

AN - SCOPUS:0344182908

SN - 0304-8853

VL - 198

SP - 131

EP - 133

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

T2 - Proceedings of the 1998 3rd International Symposium on Metallic Multilayers (MML-98)

Y2 - 14 June 1998 through 19 June 1998

ER -

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

Abstract

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