We have studied the effects of oxygen defects in CuO2 planes by 80 keV electron irradiation on YBCO thin films. Similar to the results of Zn-doped YBCO, a significant increase in residual resistivity accompanies Tc suppression, and the relation could be described in the framework of pair-breaking. However, the Tc suppression rate is three times as slow as predicted by d-wave pairing symmetry. For irradiated samples, (dHc2/dT) near Tc is consistent with the scenario of double pair-breaking, in contrast to the case of Pr-doped YBCO.
|Number of pages||2|
|Journal||Czechoslovak Journal of Physics|
|Issue number||SUPPL. 3|
|State||Published - 1 Dec 1996|