The chapter considers autowaves that were observed in the thin near-electrode layer of concentrated magnetic fluid. Autowave process is a unique object for the study of self-organization. We observed pacemakers (leading centers), reverberators (spiral waves), and wave diffraction. A mechanism for the appearance of an autowave process has been developed; its mathematical model has been proposed and realized by means of computer simulation. As a basic method of observation, we used electrically controlled interference. This method watches the changes in the spectrum of reflected light from a two-layer structure with variable thickness: "conductive ITO coating-a layer of concentrated magnetic fluid" in an electric field.
Reflection from a homogeneous-liquid-magnetic-liquid interphase boundary in an electric field was investigated in this paper. It was found that the reflectance from the interphase boundary changes in an electric field. The observed phenomenon was interpreted as interference in a thin concentrated layer at the interphase boundary, and the thickness and refractive index of this layer were found.
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