V. L. Arbuzov, V. R. Zakharova, A. E. Davletshin, V. A. Tsurin, N. M. Kleinerman
Institute of Metal Physics, Russian Academy of Sciences, S. Kovalevskaya 18 Str., GSP-170, 620219 Ekaterinburg, Russia
The effect of electron irradiation in oxygen environment on oxygen-deficient YBaCuO powder properties
at 130-250°C was investigated. Above 230°C an irradiation caused an improvement of superconducting
properties. At the same time oxygen content increment and lattice stresses relaxation were observed
by means of Moessbauer spectroscopy. The effective energy of oxygen diffusion in YBaCuO at electron
irradiation was estimated to be about 0.25 eV.