Solid solutions based on yttrium iron garnets containing both bismuth and cerium ions in the crystal lattice were obtained for the first time using gel combustion with polyvinyl alcohol as fuel. Substitution of Ce3+ ions for yttrium is 0.15 formula units, while substitution with Bi3+ is 0.7 and 1.0 formula units. The gels formed during the synthesis were studied using IR spectroscopy, and the main functional groups involved in gel structure formation were identified. A study of the magnetic properties of Y3–x(CeBi)xFe3.5Ga1.5O12 solid solutions allowed us to establish the dependence of the specific magnetization, average magnetic moment, and magnetic ordering temperature on the bismuth and cerium ion content in the garnet.
Smirnova et al. (Sat,) studied this question.