Coating ferrite on LATEX spheres due to fabrication of three-dimensional magneto-photonic crystal

摘要

This work was aimed at fabrication of a three-dimensional magneto-photonic crystal. In our experiments LATEX spheres with diameter of about 200 nm were coated with Fe_3O_4 fine particle. The diameter of Fe_3O_4 fine particles is about 30 nm when ratio of Fe~(3+) / Fe~(2+) (r) = 3 % and pH = 8.6. The diameter of these particles decreases about 10 nm by increasing up to r = 20 % in the same pH region. It was found that a decrease of the coated particles size can be made as low as the size of 5 % of LATEX spheres diameter. Therefore, it may use these particles for preparation a three-dimensional magneto-dielectric structure.