Ambient-Pressure High-Temperature Superconductors
Materials that carry supercurrent or trap flux at record temperatures without external compression, the precondition for any practical superconducting device.
Developed mainly in: United States and RussiaImpacting: Europe, North America, China and Russia
Researchers at Kazan Federal University ground pyrolytic graphite and annealed it at 670 K in air, producing dense wrinkle-type defects on basal-plane surfaces visible in TEM. These samples trapped magnetic flux — a superconductivity signature — persisting past 390 K, while unannealed or vacuum-annealed samples lacking wrinkles showed negligible trapping.
This is one of 24 signals scored in our latest scan.
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29 May 2026 · score 8.0/10
Corroborating sources since flagging
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Tracked from 3 signals, each traced to its source.
- Graphite nanoflakes with wrinkle defects show magnetic flux trapping above 390 K
Arxiv · 17 Sept 2026
- Physicists Just Achieved Superconductivity at Highest Temperature Yet – Under Normal Pressure : ScienceAlert
Sciencealert · 8 Jul 2026
- Scientists break 30-year superconductivity record at normal pressure
Sciencedaily · 29 May 2026
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