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A comment on LK-99 is an online sensation – but replication efforts fall short. Parent comment
It's a defect (where small amounts of the field aren't expelled) that allows for the pinning to happen: https://en.wikipedia.org/wiki/Type-II_superconductor#Flux_pi...
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It's a defect (where small amounts of the field aren't expelled) that allows for the pinning to happen: https://en.wikipedia.org/wiki/Type-II_superconductor#Flux_pi...