SPECTRAL DEPENDENCIES OF MAGNETOOPTICAL EFFECTS IN MAGNETIC FLUIDS

C.V. Yerin; V.I. Vivchar; S.S. Belykh

doi:10.31489/2022No2/86-92

Authors

DOI:

https://doi.org/10.31489/2022No2/86-92

Keywords:

magnetic fluids, optical anisotropy, magnetite, complex refractive index

Abstract

The spectral dependences of the transmittance and optical anisotropy effects in magnetic fluid have been investigated. It is shown that the refractive index spectra of bulk magnetite known are of little use for the quantitative and qualitative interpretation of optical effects in magnetic fluids. The transmission, birefringence, and dichroism spectra are calculated using the known refractive index spectra of magnetite. The best agreement with the experiment was obtained using the experimental spectra of the complex refractive index of the powder of magnetite nanoparticles. It is concluded that there is a significant difference in the spectra of the complex refractive index for bulk and nanosized magnetite.

Author's detail

C.V. Yerin

Doctor of phys.-math. sciences, Professor, Department of Physics and Technology, North-Caucasus Federal University, Stavropol, Russian Federation; Scopus Author ID: 56305531700, ORCID ID: 0000-0002-2426-4225

V.I. Vivchar

Post Graduate student, Department of Physics and Technology, North-Caucasus Federal University, Stavropol, Russian Federation

S.S. Belykh

Master (Sci.), Engineer-physicist, Department of Physics and Technology, North-Caucasus Federal University, Stavropol, Russian Federation; Scopus Author ID: 57202009427, ORCID ID: 0000-0001-9133-0192

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SPECTRAL DEPENDENCIES OF MAGNETOOPTICAL EFFECTS IN MAGNETIC FLUIDS