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Nanoparticles concentration influence on magnetic gyrotropy in ferrocolloids

S. D. Turkin - Yu. I. Dikansky

Department of General and Theoretical Physics, North-Caucasus Federal University, 1 Pushkin str., 355009 Stavropol, Russia

An experiment on the propagation of a plane-polarized SHF-ranged electromagnetic wave in magnetic colloids containing magnetite particles was performed. It is found that the action of the magnetic field aligned with the wave on such media results in turning (rotation) of the wave polarization plane (Faraday effect). Moreover, this effect is pronounced only at exceeding a certain critical volume concentration of magnetite. Some peculiarities of the phenomenon have been found in structurally ordered magnetic colloids which could be attributed to the alteration of their structure under the magnetic field action. Figs 7, Refs 6.

Magnetohydrodynamics 54, No. 1/2, 147-152, 2018 [PDF, 0.52 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X