Research Background and Energy Implications

Superconductors already play a crucial role in technologies like MRI machines and particle accelerators, and they are expected to be key for future systems such as fusion reactors and ultra-efficient electronics. The main obstacle has always been temperature: most superconductors require extremely low cooling—often with costly liquid helium—limiting their widespread application.

Figure 1. Record-Breaking Superconductivity Achieved at Ambient Pressure.

For decades, researchers have worked to raise the critical temperature (Tc). The closer Tc gets to room temperature, the more practical large-scale use becomes. While the latest breakthrough doesn’t fully reach room temperature, it significantly narrows the gap and offers a promising new approach. Figure 1 shows Record-Breaking Superconductivity Achieved at Ambient Pressure.

Challenges and Accessibility of Superconductors

“Once the material operates at ambient pressure, it becomes far easier for scientists to study it using well-established instruments and to develop technologies that function under normal conditions,” said Deng, assistant professor of physics, lead investigator at TcSUH, and principal author of the study.

Advances in high-temperature superconductivity have been ongoing for over 50 years. A major milestone came in 1987, when Chu and colleagues discovered that YBCO becomes superconducting at −180 °C (−292 °F, or 93 K), sparking worldwide efforts to develop materials that work at higher temperatures.

New Record and Pressure Quenching Technique

This achievement relies on a technique called pressure quenching, which, while new to superconductors, is commonly used in processes like diamond formation. Researchers first apply extremely high pressure to enhance the material’s properties and increase its transition temperature. While still under pressure, the material is cooled to a target temperature and then rapidly returned to normal pressure, effectively “locking in” its enhanced superconducting behavior. This allows the material to maintain a higher Tc without the need for continuous pressure, keeping it stable under normal conditions.

Stabilizing Superconductivity Without Pressure

“Other researchers have shown that room-temperature superconductivity under pressure is possible,” said Chu. “Our method demonstrates that this state can be retained even after releasing the pressure.”

While achieving room-temperature superconductivity at ambient pressure (~300 K) remains the ultimate goal, the team considers this milestone a significant advance.

“This finding has great potential,” Chu added. “With enough dedicated effort over time, we believe the full potential can be realized.”

Future Outlook and Scientific Collaboration

Chu and Deng also co-authored a companion perspective paper funded by Intellectual Ventures, published in PNAS. The paper outlines six strategies for raising superconducting temperatures—including pressure quenching—according to Rohit Prasankumar, director of superconductivity research at Intellectual Ventures.

“Room-temperature superconductivity has been the ‘holy grail’ of physics for over a century,” Prasankumar said. “The UH team’s results bring us closer than ever. However, the gap to room temperature is still roughly 140 °C. Closing it will require coordinated efforts from materials scientists, chemists, engineers, and physicists alike.”

Source: SciTECHDaily

Cite this article:

Priyadharshini S (2026), Scientists Achieve Record-Breaking Superconductivity Under Normal Pressure, AnaTechMaz, pp. 458