Crystalquasichemical Description the Formation of Defects in nanodispersed Yttrium-Iron Garnet

<p>By the sol-gel method of autocombustionan initial oxide system was synthesized for a receipt a nanodispersed Yttrium Iron Garnet. It was set that forming of the monophase system Y&lt;sub&gt;3&lt;/sub&gt;Fe&lt;sub&gt;5&lt;/sub&gt;O&lt;sub&gt;12&lt;/sub&gt;begins at temperatures above 973 К in static air atmosphere. The crystalquasichemical formulas for Y&lt;sub&gt;3&lt;/sub&gt;Fe&lt;sub&gt;5&lt;/sub&gt;O&lt;sub&gt;12&lt;/sub&gt; are offered. Dependence of concentration of defects from a degree non-stoichiometry of oxygen is calculated. It was set that the formation of garnet structure needed oxygen atmosphere annealing. Partial pressure of oxygen determines the resulting structure defects.</p><p><strong>Keywords:</strong> yttrium iron garnet, sol-gel-autocombustion method, isothermal annealing, atmosphere, crystalquasichemical formulas, defects.</p>