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TopicWhat happened to that room temperature super-conductor?
UnholyMudcrab
08/20/23 10:19:54 PM
#5:


https://www.nature.com/articles/d41586-023-02585-7

Copper sulfide impurities were causing the drops in resistance. A different team tested pure LK-99 and found that not only was it not a superconductor, it was actually an insulator.

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