Critical Current Density and Transition Temperature Measurements of Y-Ba-Cu-O Rods.

摘要

Measurements were made on the superconducting properties of cylindrical Y-Ba-Cu-O rods prepared by ICI Americas Inc. The transition temperature was determined from measurements of ac susceptibility as a function of temperature. The critical current density at 77K was determined by measuring the voltage as a function of current using four terminal transport measurements, in magnetic fields of different intensities. (rrh)