摘要:
Ceramic compositions which exhibit the phenomenon of superconductivity are disclosed. Methods of making and using the compositions are included. The compositions comprise 1-2-3 ceramic compositions (e.g., Y, Ba, Cu/Ag) with the fourth constituent comprising sulfur, selenium or tellurium. Unexpectedly high temperature (e.g., non-cryogenic) and essentially atmospheric pressure superconductor characteristics are shown.
摘要:
Disclosed are ceramic materials and methods of making the same comprising yttrium, barium, silver, and either selenium or sulfur. Those ceramic materials show changes in magnetic susceptibility at around 373.degree. K. with selenium and 195.degree. K. with sulfur.