Superconductivity Record Broken at Normal Pressure

Researchers at the University of Houston have set a new record for superconductivity at ambient pressure. They achieved a transition temperature of 151 Kelvin (minus 122 degrees Celsius). This temperature is the highest ever recorded for a superconductor operating under normal pressure conditions.

Superconductivity allows electricity to flow with zero resistance. This breakthrough could lead to more efficient electrical grids and improved energy storage. It may also advance technologies for fusion energy and medical imaging. The previous record of 133 Kelvin had stood for over 30 years.

The findings were published in the *Proceedings of the National Academy of Sciences*. Physicists Ching-Wu Chu and Liangzi Deng led the research. Funding came from Intellectual Ventures, the state of Texas, and several foundations.

Most superconductors require extremely low temperatures, limiting their practical use. Increasing the transition temperature makes superconducting technologies more feasible. The new method involved subjecting a material to high pressure, then rapidly releasing it while the material was cooled. This process preserved the enhanced superconducting properties at normal pressure.

This achievement is a significant step toward room-temperature superconductivity. Room temperature is approximately 300 Kelvin. The current record is still about 140 degrees Celsius away from this goal. Scientists believe continued research will help bridge this gap.