I’m not a physicist expert of superconductors, although I’ve followed quite closely that field since the ‘90s. But if the measurements are similar and correct and if the video of lk-99 levitating above a magnet demonstrating the Meissner effect is not fake, I don’t really have an alternative explanation to account for all of that. I guess that we’ll see what happens in the next week or two. This is too high stakes to take longer than that for a so easily reproducible experiment.
edit: useful comment elsethread by macromaniac on plausibility of diamagnetic effects
Can you please provide a link?
Edit: found it https://sciencecast.org/casts/suc384jly50n
Yeah, I can't be bothered logging in.
If true, it seems wild to sit on this kind of discovery for over two years.
Update: Seems like there might be even more history given the name LK-99 apparently comes from the names of its discoverers Dr. Lee and Dr. Kim, and the year of its discovery, 1999 (https://kr.linkedin.com/in/ji-hoon-kim-03508b80).
"YW Kwon" published the first paper with himself as the 3rd author, and "HT Kim" published the second paper a few hours later with himself as the 3rd author.
Pretty interesting drama if that's the case. May indicate neither paper was ready, but that they all think the result is legitimate.
>Kim has only co-authored one of the arXiv papers, while the other is authored by his colleagues at the Quantum Energy Research Centre in South Korea, some of whom also applied for a patent on LK-99 in August 2022.
>Both papers present similar measurements, however Kim says that the second paper contains “many defects” and was uploaded to arXiv without his permission. In that paper, the work is described as opening a “new era for humankind”.
>Other experts that New Scientist consulted were similarly sceptical about the results and the data produced. Some raised concern that some of the results could be explained by errors in experimental procedure combined with imperfections in the LK-99 sample.