A model of the isotope effect of the oxide superconductor

On the Free Carrier-Negative U Center Interacting Model for the High- T c Oxide Superconductor

“…In a separate paper the isotope effect of the high-Tc oxide superconductor is discussed under the free carrier-negative U center interacting model' 14 ', and the isotope effect exponent of Lai.gsSro.isCuC^ has been obtained to be 0.17 which is fairly consistent with experiment. Combining that paper with this paper we can say that the applicability of our model to the high-T c oxide superconductor was systematically expounded.…”

“…The appropriately more the number of Cu-0 layers placed in between the other atomic layers is, the higher T c is. In my opinion, the Cu-O layer contains the negative U centers' 14 ' and the other layer in the high-T c oxide superconductor corresponds to the S layer whose As may,even be small.…”