| 摘要 |
PURPOSE:To prepare a copper oxide material produced at low temperature, having good sinterability and useful as a superconductive material by comprising a specific periodic lamellar structure having surfaces with atomic arrangements vertical to the c-axis and containing CuO2 surfaces along the c axis. CONSTITUTION:A lamellar metal oxide material comprising surfaces having atomic arrangements vertical to the c-axis has a periodical structure comprising AO, AO, BO, CuO2, CO, DO, CO, CuO2, BO and AO surfaces along the c-axis. In the oxide material the A, B, C and D are preferably elements or atomic groups selected from an elements group consisting of Bi, Pb, Ti, Ca, Sr, Ba, Y and lanthanide elements. In an especially preferable metal oxide material, A is Bi and B, C and D are Sr. |
