Houston Team Sets 151 K Ambient Superconductivity Record
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- University of Houston researchers achieved a transition temperature of 151 K for a superconductor at ambient pressure, the highest ever recorded for ambient‑pressure materials.
- The material HgBa2Ca2Cu3O8+δ (Hg1223) previously held the ambient‑pressure record of 133 K; the new result raises the record by 18 K.
- Pressure‑quenching—a technique that applies intense pressure, cools the sample, then rapidly releases pressure—was used to lock in the enhanced superconducting properties.
- Ching‑Wu Chu co‑authored the study, which was published on March 9 in the Proceedings of the National Academy of Sciences.
- Liangzi Deng noted that ambient‑pressure superconductors are more accessible for investigation and could cut electricity‑grid losses, which currently cost about 8 % of generated power.
Why it matters: The new ambient‑pressure superconductor could cut the roughly 8 % electricity loss in power grids, translating into billions of dollars in savings for utilities and consumers while lowering environmental impact. The breakthrough also makes it easier for researchers to study and develop superconducting technologies without costly cooling systems, potentially accelerating advances in medical imaging, fusion energy, and high‑speed electronics.
