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Ferromagnetic Resonance in Single Crystal Bismuth Iron Garnet Films

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Abstract

Among other magneto-optic materials bismuth substituted yttrium iron garnet (BixY1−x)3 Fe5O12 has the highest Faraday rotation effect in visible region. Completely substituted bismuth iron garnet Bi3Fe5O12 (BIG) films have been grown by pulsed laser deposition technique onto (111) (NdGd)3(ScGa)5O12 single crystal with lattice constant of 12.623 Å. X-ray diffraction proves epitaxial film quality. VSM measurements yield the saturation magnetization 4πMs, = 1100 G and coercive field is about 50 Oe. Ferromagnetic resonance (FMR) method reveals perpendicular magnetic anisotropy in fabricated films. Angular measurements of FMR give the constants of uniaxial and cubic anisotropy in BIG film: Ku = 5.9×104 erg/cm3 and K1= - 6.95×103 erg/cm3. The Faraday rotation has been found to reach - 7.8 deg/ώm at 630 nm.

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Authors and Affiliations

  1. Department of Condensed Matter Physics, Royal Institute of Technology, S- 100, 44, Stockholm, Sweden

    V. Denysenkov, A. Jalali-Roudsar, N. Adachi, S. Khartsev & A. Grishin

  2. Nagoya Institute of Technology, Nagoya, 466, Japan

    T. Okuda

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  1. V. Denysenkov
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  2. A. Jalali-Roudsar
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  3. N. Adachi
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  4. S. Khartsev
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  5. A. Grishin
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  6. T. Okuda
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Denysenkov, V., Jalali-Roudsar, A., Adachi, N. et al. Ferromagnetic Resonance in Single Crystal Bismuth Iron Garnet Films. MRS Online Proceedings Library 603, 107–112 (1999). https://doi.org/10.1557/PROC-603-107

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  • DOI: https://doi.org/10.1557/PROC-603-107

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