Specific features of the magneto-optical effect of a change in the transparency of a magnetic emulsion with low interfacial tension have been investigated. The effect has been interpreted within the anomalous diffraction approximation. The characteristic times of field action, at which the processes of sample coalescence and structuring do not affect the optical effect, are determined. The effect relaxation time is found and the data obtained are compared with the results of calculations, performed according to the mechanisms of small deformation of microdroplets and Brownian rotational diffusion.
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