The influence of the disorder induced by electron irradiation on Tc and magnetic susceptibility of YBa2Cu3O7

Abstract The radiation dose dependence of T c for sintered YBa 2 Cu 3 O 7 irradiated with 2.7 MeV-electrons at very low temperatures (T irr c shifts linearly with dose from 92 K down to 77 K at a dose of 3.8 · 10 −19 e−/cm 2 . The shape of the transition is not significantly influenced by the irradiation. A big part of the radiation damage recovers during tempering up to RT with a distinct step at 180K. The high sensitivity to irradiation is not explainable only by the displacement of O-Atoms, but suggests that also Cu-sites of the Cu O Cu O chains are affected.