V. Sandu et al., NONMONOTONOUS VARIATION OF THE SUPERCONDUCTING PARAMETERS OF NEUTRON-IRRADIATED LI-DOPED YBA2CU3O7-X, Journal of superconductivity, 11(2), 1998, pp. 245-251
The effect of thermal and epithermal neutron irradiation on the superc
onducting critical temperature and critical current density of some Li
-doped YBa2Cu3O7-x, samples was studied. The critical temperature exhi
bits a peak and the critical current density a valley in their depende
nce on neutron fluence, for moderate dose. A simple model, based on th
e Van Hove scenario and the kinetics of the defect production, is used
to describe both phenomena.