| 摘要 |
<p>Oxide materials of (LxA1-x)iMOy, (LxA1-x)iM1-zCuzOy and (LxA1-x)iMOj- delta Gk, wherein L is Sc, Y, lanthanides, etc.; A is Ba, Sr, Ca, etc.; M is V, Nb, Ta, Ti, Zr or Hf; 0 < x < 1; 0 < z < 1; i=1, 3/2 or 2; 0 < y </= 4; G is F, Cl or N; delta is oxygen defect, and having a perovskite-like crystal structure, show superconductivity at a temperature higher than the liquid nitrogen temperature.</p> |
