Fractal Analysis of Magneto-Optical Visualization of the Remagnetization of a Permanent Magnet in a Pulsed Field

Results are presented from a fractal analysis of images of the surface of a KC-37 permanent magnet, obtained via the polar Kerr effect using an indicator bismuth-containing ferrite-garnet film after magnetization reversal by a pulsed field of 0.1–1.5 T. The obtained dependences of the residual magne...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2023-10, Vol.87 (10), p.1421-1424
Main Authors: Zigert, A. D., Kuz’min, N. B., Sdobnyakov, N. Yu, Ivanova, A. I., Dunaeva, G. G., Semenova, E. M.
Format: Article
Language:English
Subjects:
Bismuth
Fractal analysis
Fractal geometry
Hadrons
Heavy Ions
Kerr effects
Magnetization reversal
Nuclear Physics
Permanent magnets
Physics
Physics and Astronomy
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Summary:Results are presented from a fractal analysis of images of the surface of a KC-37 permanent magnet, obtained via the polar Kerr effect using an indicator bismuth-containing ferrite-garnet film after magnetization reversal by a pulsed field of 0.1–1.5 T. The obtained dependences of the residual magnetization on the magnitude of the external pulsed field are compared to the fractal dimension of magneto-optical images of the magnet’s surface after exposure to the pulsed field. It is shown that the maximum value of the fractal dimension corresponds to the demagnetized state of the magnet.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873823703422