Leiden physicists and international colleagues from Geneva and Barcelona have confirmed the mechanism that makes magic-angle graphene superconducting. This is a key step in elucidating high-temperature superconductivity, a decades-old mystery central to physics, which may lead to technological breakthroughs.
Magic-angle materials form a surprising recent physics discovery. "You take a sheet of graphene," says Sense Jan van der Molen, referring to the two-dimensional material made of carbon atoms in a hexagonal pattern, "then you put another layer on top of it and twist the latter by 1 degree. This way, you suddenly get a superconductor."
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