| 摘要 |
PURPOSE:To obtain a novel compd. useful as a magnetic material, a semiconductor material and a catalyst by providing a compsn. consisting of Lu, Fe, Zn and O in a prescribed atomic ratio and a hexagonal layer structure. CONSTITUTION:A compd. of this invention has a hexagonal layer structure represented by a formula LuFeZn5O8. The ionic crystal model of the compd. is represented by Lu<3+>(Fe<3+>, Zn<2+>)Zn4<2+>O8<2->. The structure is formed by laminating LuO1.5, (Fe, Zn)O2.5 and ZnO layers and one of the characteristics of the compd. is its remarkable structural anisotropy. In the structure, one fifth of the Zn<2+> ions form (Fe<3+>, Zn<2+>)O2.5 layers with Fe<3+> and the remaining four fifths form ZnO layers. The compd. may be utilized as a magnetic body, a semiconductor and a catalytic substance each having highly anisotropic two-dimensional properties.
|
