New insight into unconventional superconductivity

Signatures for a novel electronic phase that enables charge to flow spontaneously in loops have been observed in a kagome superconductor. Using ultra-sensitive muon spin spectroscopy, researchers discovered time-reversal symmetry-breaking magnetic fields inside the material, indicating the existence of long-searched-for 'orbital currents'. The discovery aids understanding of high-temperature superconductivity and quantum phenomena underpinning next-generation device research.

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