High‐Temperature Supercurrents May Not Be Forever
DOI: 10.1063/1.2810920
Synthesis of thin films of the new oxide superconductors that have large critical current densities has been an important development in taming the properties of those materials for useful applications. A superconductor becomes normal when a current stronger than the critical current density is passed through it. Many applications, however, require large values of the critical current density. “Good” films of the 90‐K superconductor
