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First claimed successful replication of LK-99 (twitter.com)

submitted 1 year ago by realherald@lemmy.world to c/technology@lemmy.world

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"Accomplished by a team at the Huazhong University of Science and Technology and posted 30 minutes ago.

Why this is evidence: The LK-99 flake slightly levitates for both orientations of the magnetic field, meaning it is not simply a magnetized piece of iron or similar 'magnetic material'. A simple magnetic flake would be attracted to one polarity of the strong magnet, and repelled by the other. A diamagnet would be repelled under either orientation, since it resists and expels all fields regardless of the polarity.

Caveats There is no way to verify the orientation of the strong magnet in this video, also, there are yet to be published experimental measured values of this sample. Diamagnetism is a property of superconductors but without measured and verified data, this is just suggestive of a result.

Take-away If this synthesis was indeed successful, then this material is easy enough to be made by labs other than the original research team. I would watch carefully for results out of Argonne National Lab, who are reported to be working on their own synthesis of a sample.

This overall corroborates two independent simulation studies that investigated the original Korean authors claim about material and crystal structure, and both studies supported the claims.

Lawrence Berkeley National Lab: https://arxiv.org/pdf/2307.16892.pdf Shenyang National Lab: https://arxiv.org/pdf/2307.16040.pdf "

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[–] Donjuanme@lemmy.world 1 points 1 year ago

Why would another lab be manipulatable? This guy didn't even need to get paid off:

"The video in question is allegedly from the University of Science and Technology in Beijing and purports to show a small black substance floating in the air as it follows a magnet. According to the video's poster, he did it for "attention grabbing purposes" - it was a way to coast the hype around LK-99." Gotta strike the iron while it's hot.

Current analysis says lk-99 isn't even a"good"conductor, let alone a super conductor, let alone a room temperature super conductor. I'll hope that "this one easy to produce material has revolutionized science" gets discovered some day, but it didn't happen last week.