Researchers develop pressure-quench process to enhance superconductivity toward goal of wasting zero energy

https://phys.org/news/2022-03-pressure-quench-superconductivity-goal-energy.html

"Chu and Deng have developed a pressure-quench process (PQP), in which they first apply pressure to their samples at room temperature to enhance superconductivity, cool them to a chosen lower temperature, and then completely release the applied pressure, while still retaining the enhanced superconducting properties"