Publication
Physica C: Superconductivity and its applications
Paper
Arresting of vortex motion in YBaCuO crystals with splay in columnar defects
Abstract
We show that at high temperatures, the columnar defects generated in YBaCuO crystals by 0.58 GeV 116Sn30+ have a natural splay of ≈10° and produce a 10 times larger persistent current density and a 10 times smaller creep rate, than well aligned tracks created by 1.08 GeV 197Sn23+, with splay of only ≈2°. © 1994.