Superconductors under pressure

Researchers at the Max Plank Institute for Solid State Research in Germany, working with colleagues in China and the USA have stumbled upon a way to induce a phase transition in a three-layered bismuth oxide crystal referred to as "Bi2223" to make it a superconductor under two different high pressures. The team suspects that this unusual two-step phenomena comes from competition of electronic behavior in different kinds of copper-oxygen layers in the crystal. The team hopes that this phenomenon might be exploited in creating superconductors that function under ambient conditions.