| 摘要 |
PURPOSE:To easily obtain the title compd. useful as a magnetic material, a semiconductor material, etc., by mixing a compd. such as metallic Tm, a compd. such as metallic iron, and a compd. such as metallic zinc in a specified ratio, and heating the mixture in the atmosphere, etc. CONSTITUTION:A compd. such as high-purity metallic Tm having >=10mum parti cle diameter, a compd. such as metallic iron, and a compd. such as metallic zinc are mixed so that the atomic ratio of Tm, Fe, and Zn is adjusted to 1/1/7 to obtain a mixture. The mixture is then heated at >=600 deg.C for >=1hr in the atmosphere, in an oxidizing atmosphere, or in the reducing atmosphere wherein the trivalent ions of Tm and Fe and the bivalent ion of Zn are not reduced, and then quenched. After quenching, the material is take out into the atmosphere to obtain the compd. of TmFeZn7O10 wherein Yb3+ is substituted for Tm<3+> and Fe2+ for Zn<2+> in the chemical formula I wherein n=1/7, exhibiting the ionic crystal model shown by formula II, consisting of a TmO1.5 layer, an (Fe, Zn)O2.5 layer, and a ZnO layer, and having a hexagonal lamellar structure. |
