Influence of Magnetic Field on the Spectra of Optical Phenomena in Magnetic Fluids with Different Aggregative Stability

Abstract

The spectra of birefringence, dichroism, and transmission of magnetic fluids with different aggregative stability under the influence of a constant magnetic field were experimentally studied. A change in the complex refractive index of aggregates of magnetite nanoparticles during their growth was discovered. An interpretation of the spectral features of optical anisotropy and light transmission in aggregation-unstable magnetic fluids was proposed.