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Magneto-Optical Ellipsometry of Thin Films with Optical Uniaxial Anisotropy

  • ELECTRICAL AND MAGNETIC PROPERTIES
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Abstract

In this paper, we solve the inverse problem of magneto-optical ellipsometry for thin ferromagnetic films with optical uniaxial anisotropy. We work within the framework of the approach we developed earlier analyzing magnetoellipsometric data without using fourth-order M-matrices. We work with ellipsometric relations, in which we take into account the magneto-optical contribution as perturbations, and ellipsometric measurements are carried out on a setup with a simple dipole scheme based on the transverse magneto-optical Kerr effect. We add the magneto-optical response to the expressions known in the literature for the reflection coefficients of anisotropic thin films, which are related to the parameters measured by magneto-optical ellipsometry. As a result, by analyzing the obtained expressions for the reflection coefficients, we obtain information on the total permittivity tensor of a thin film.

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Funding

The research was performed at the Magnetic MAX Materials Laboratory of the Kirensky Institute of Physics SB RAS (created under Megagrant project (agreement no. 075-15-2019-1886) with the financial support of the Russian Science Foundation no. 21-12-00226, http://rscf.ru/project/21-12-00226/.

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Authors and Affiliations

  1. Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036, Krasnoyarsk, Russia

    O. A. Maximova, S. A. Lyaschenko, S. N. Varnakov, S. G. Ovchinnikov, I. A. Yakovlev, D. V. Shevtsov & T. A. Andryushchenko

  2. Krasnoyarsk Scientific Center, Federal Research Center KSC SB RAS, 660036, Krasnoyarsk, Russia

    S. N. Varnakov

Authors
  1. O. A. Maximova
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  2. S. A. Lyaschenko
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  3. S. N. Varnakov
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  4. S. G. Ovchinnikov
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  5. I. A. Yakovlev
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  6. D. V. Shevtsov
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  7. T. A. Andryushchenko
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Correspondence to O. A. Maximova.

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Maximova, O.A., Lyaschenko, S.A., Varnakov, S.N. et al. Magneto-Optical Ellipsometry of Thin Films with Optical Uniaxial Anisotropy. Phys. Metals Metallogr. 124, 1654–1661 (2023). https://doi.org/10.1134/S0031918X23601385

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