What if superconductors could break all world records by operating closer to room temperature without requiring extreme pressure systems?
Researchers at the University of Houston and its Texas Center for Superconductivity have reported a new ambient pressure superconductivity record, achieving a transition temperature of 151 K without maintaining high pressure conditions. The breakthrough could support future development of energy efficient electronics, power grids, and quantum technologies.
The research team used a technique called pressure quenching to stabilize enhanced superconducting properties after removing pressure from the material. Using this method, the superconducting state remained stable under normal ambient conditions while achieving a transition temperature significantly higher than previous ambient pressure superconductors.
The work improves on the long standing ambient pressure record held by mercury based cuprate superconductors discovered in the 1990s. According to the researchers, the new result increases the superconducting transition temperature by 18 K, moving the field closer toward practical high temperature superconductivity.
Superconductors allow electrical current to flow without resistance, eliminating energy loss caused by heat generation in conventional conductors. Researchers say higher temperature superconductors could improve power transmission efficiency, medical imaging systems, fusion energy infrastructure, and advanced computing technologies.
Liangzi Deng, assistant professor of physics, principal investigator at the TcSUH and lead author of the paper, says, “Once we bring the material to ambient pressure, it becomes much more accessible for scientists to use well-developed instrumentation to investigate it and further develop technologies for ambient condition operations.”
