Changes in Critical Parameters of GdBa₂Cu₃O_7−x HTS‐2G Due to Swift‐Ion Irradiation

Abstract

The influence of the ion irradiation 132Xe27+ (167 MeV), 86Kr17+ (107 MeV), and 40Ar8+ (48 MeV) on critical properties (Ic, Tc, ΔTc) of superconductor tapes of the 2‐nd generation GdBa2Cu3O7−x (SuperOx) are studied. It is shown that the critical current slightly increases and the width of the transition to the superconducting state reduces at low doses of Xe‐irradiation. The obtained results enable the authors to estimate the radiation resistance of this HTS‐2G tape to the used irradiation. As for the critical temperature, its decrease begins at considerably higher fluences than the decrease in the critical current, and ΔTc also changes. The decrease in the critical current can be explained by the irradiation‐induced disorder of coherent boundaries between crystallites. At the instant of Tc to zero, it is possible to roughly estimate the track radii induced by the ions.

Defect‐Induced Effects in Nanomaterials

“…Swift heavy ions and ion tracks in solids. L. Antonova et al dedicated their work to the influence of the swift heavy ion irradiation on the critical parameters of the 2‐nd generation GdBa 2 Cu 3 O 7− x (SuperOx) high‐temperature superconductor. D. Yakimchuk et al proposed to use the ellipsometry as an express method of estimating etched ion track parameters in a silicon dioxide template.…”