| 摘要 |
PCT No. PCT/JP91/01255 Sec. 371 Date May 20, 1992 Sec. 102(e) Date May 20, 1992 PCT Filed Sep. 20, 1991 PCT Pub. No. WO92/05114 PCT Pub. Date Apr. 2, 1992.Provided is an oxide superconductor in which superconducting layer is sandwiched between two blocking layers having different compositions. Available superconducting layers include a one-layer system having one Cu-O2 sheet, a two-layer system having a mediating layer sandwiched between two Cu-O2 sheets, and a three-layer system having mediating layers sandwiched individually between three Cu-O2 sheets. Since the blocking layers are of different compositions, seventy-seven kinds of oxide superconductors can be obtained.
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