Oxide superconductor and method for manufacturing same
摘要
說(shuō)明書(shū)
In addition, when PrBa2Cu3O7-z (? 1≤z≤1) (hereinafter, PrBCO) is contained in the non-superconducting region 32 in an amount of 24%, a maximum average number of oxygen becomes 7.12, and when the amount of praseodymium (Pr) further increases, the average number of oxygen increases in proportion to the amount of praseodymium (Pr).
In the non-superconducting region 32, the ratio of the number of atoms of the praseodymium (Pr) to the sum of the number of atoms of the at least one rare earth element and the number of atoms of the praseodymium (Pr) is, for example, 50% or less.
At least one rare earth element selected from the group contained in regions of each of the first superconducting region 31a, the second superconducting region 31b, the third superconducting region 31c, the fourth superconducting region 31d, the first non-superconducting region 32a, the second non-superconducting region 32b, and the third non-superconducting region 32c is, for example, the same.
