M. Terasawa et al., INFLUENCE OF HIGH-ENERGY HEAVY-ION IRRADIATION ON MAGNETIC-FLUX PINNING IN LA1.85SR0.15CUO4, Physica. C, Superconductivity, 235, 1994, pp. 2805-2806
Polycrystalline La1.85Sr0.15CuO4 was irradiated with 3.5 GeV Xe31+ ion
s. It is found that the ion-induced defects are operative as strong pi
nning centers for magnetic fluxes and the critical current density inc
reases even in high magnetic fields.