| 摘要 |
PURPOSE:To obtain a pattern of a superconductor by forming a ceramic material on a base body by a spattering process, and radiating a laser beam in a belt form. CONSTITUTION:An oxide ceramic material shown as (La1-x Srx)2 CuO4 or (La1-x Bax)2 CuO4 is formed in a membrane on a cylindrical or disk form base body 1 by a high-frequency or DC spattering process. Then, laser beams are radiated and scanned in a belt form while the cylindrical base body 1 is rotated, to recrystallize in a specific width of belt form. In such a process, only the area of irradiation is annealed to increase the crystallization rate (the crystalline particle diameter is increased making a minute crystalline structure of exercising the superconduction), the grid deformation and the grid deflection are reduced only in the irradiated area, and impurities are separated on the surface by the molten recrystallization, to highly purity the inside. In such a process, the superconductive material with a specific superconductive critical temperature is made, and a single or multi-layer coil can be formed by using a ceramic material. |
