Studies of structural damage in high-(Tc) superconductors by high-energy heavy-ion irradiation

摘要

The results of studies of structural damage by high-energy (MeV) Si(sup +13), Cu(sup +18), Ag(sup +21), and Au(sup +24) ions, using transmission electron microscopy techniques, revealed that the size of the damaged area (amorphous) is strongly dependent on: (1) the stopping power (dE/dx (keV/nm)) of the irradiating ions, (2) the thermal diffusivity of the crystal, (3) the degree of oxygenation, in the case of YBa(sub 2)Cu(sub 3)O(sub 7-(delta)), and (4) the direction of the ion beam with respect to the crystallographic axis.