P. Grosseau et al., NON STOICHIOMETRIC YTTRIUM-IRON-GARNET (Y IG), Journal de chimie physique et de physico-chimie biologique, 94(1), 1997, pp. 149-158
During the synthesis of yttrium iron garnet, an excess of yttrium or i
ron can result in a significant deterioration of the magnetic properti
es due to the formation of secondary phases which, because of their po
or magnetic properties, play the same role as porosity. This paper dem
onstrates how the synthesis of YIG by coprecipitation enables us to pr
event the formation of secondary phases when there is an excess of ytt
rium with respect to iron. In this case, insertion losses in the mater
ial do not increase.