superconductivity

A team at the Texas Center for Superconductivity used a pressure-quenching technique on a mercury-based copper-oxide ceramic to achieve a transition temperature of 151 K at ambient pressure, surpassing a record that had stood since 1993.

A Kyoto University team applied three types of shear strain to ultra-thin crystals of the unconventional superconductor Sr2RuO4 and found virtually no change in its transition temperature, ruling out several leading theoretical models and opening new questions about the material's pairing symmetry.

Researchers use pressure quenching to lock in a record superconducting transition temperature of 151 K at ambient pressure, surpassing a 33-year-old record.