Physicists Just Set A Major New World Record For Superconductors

Key Points:

• Researchers at the University of Houston have set a new world record for the highest temperature superconductivity under ambient pressure, achieving superconductivity at -122.15°C, nearly 20°C warmer than the previous record set by Hg1223 in 1993.
• The team used a pressure-quenching technique, temporarily compressing the cuprate superconductor Hg1223 to extremely high pressures before rapidly releasing it, creating a metastable state with defects that maintain superconductivity at higher temperatures without sustained pressure.
• This advancement breaks a decades-long stalemate in superconductor research and allows for easier study and potential practical applications of superconductors at everyday pressures and temperatures.
• Although Hg1223 is not the warmest superconductor ever made, it operates at much lower pressures compared to materials like lanthanum decahydride, which requires pressures comparable to Earth's outer core.
• The development brings the scientific community closer to the goal of room-temperature, ambient-pressure superconductors, which could revolutionize energy storage, electric vehicles, and magnetic levitation technologies.