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Graphene's failed superconductor state gets caught in the act

As of September 2026: Active in rhombohedral graphene research at MIT

MIT physicists have mapped two competing states of matter in ultra-clean rhombohedral graphene: pockets where resistance drops to zero, and adjacent pockets where it stubbornly saturates at a finite value no matter how cold the sample gets. The finite-resistance state reproduces the anomalous metal, a phenomenon seen in disordered thin-film superconductors for four decades but never explained.

Updated Sep 25