Microstructure of bismuth doped yttrium iron garnets thin films
- Authors: Subbotin I.A.1, Pashaev E.M.1, Belyaeva A.O.1, Trunkin I.N.1, Dubinin S.S.2, Merentsova K.A.2, Artemyev M.S.2, Nosov A.P.2, Vasiliev A.L.1,3
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Affiliations:
- National Research Center “Kurchatov Institute”
- Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
- Moscow Institute of Physics and Technology (National Research University)
- Issue: Vol 70, No 3 (2025)
- Pages: 529-540
- Section: ПОВЕРХНОСТЬ, ТОНКИЕ ПЛЕНКИ
- URL: https://journals.rcsi.science/0023-4761/article/view/293811
- DOI: https://doi.org/10.31857/S0023476125030206
- EDN: https://elibrary.ru/BCHLYE
- ID: 293811
Cite item
Abstract
Complex structural studies of nanosized bismuth-doped yttrium iron garnet (BYIG) films were performed using X-ray diagnostics, scanning/transmission electron microscopy, and energy-dispersive X-ray microanalysis. The crystal structure of the film-substrate interface, the near-surface layers together with change in interplanar distances along the film thickness were determined. The features of the film microstructure were revealed: the presence of pores, the absence of misfit dislocations at the interface, the formation of maghemite (γ-Fe2O3) particles on the film surface and a decrease in the Bi content towards the film surface. Assumptions were made about the change in the Bi content depending on the film thickness, which can serve as an explanation for the mechanism of decreasing the magnitude of magneto-optical effects in these films with decreasing thickness.
Full Text

About the authors
I. A. Subbotin
National Research Center “Kurchatov Institute”
Email: a.vasiliev56@gmail.com
Russian Federation, Moscow
E. M. Pashaev
National Research Center “Kurchatov Institute”
Email: a.vasiliev56@gmail.com
Russian Federation, Moscow
A. O. Belyaeva
National Research Center “Kurchatov Institute”
Email: a.vasiliev56@gmail.com
Russian Federation, Moscow
I. N. Trunkin
National Research Center “Kurchatov Institute”
Email: a.vasiliev56@gmail.com
Russian Federation, Moscow
S. S. Dubinin
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
Email: a.vasiliev56@gmail.com
Russian Federation, Ekaterinburg
K. A. Merentsova
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
Email: a.vasiliev56@gmail.com
Russian Federation, Ekaterinburg
M. S. Artemyev
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
Email: a.vasiliev56@gmail.com
Russian Federation, Ekaterinburg
A. P. Nosov
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
Email: a.vasiliev56@gmail.com
Russian Federation, Ekaterinburg
A. L. Vasiliev
National Research Center “Kurchatov Institute”; Moscow Institute of Physics and Technology (National Research University)
Author for correspondence.
Email: a.vasiliev56@gmail.com
Russian Federation, Moscow; Dolgoprudny
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