Physics, Superconductivity, Magnetism, Materials Science.
emergence of superconductivity in certain cases. Superconductor crystals. A) A thin film of a high temperature copper oxide superconductor B) A single crystal of an iron pnictide C) A single crystal of an alloy of yttrium, platinum, and bismuth, which is a superconductor only below 0.8 K (-272 °C