“We therefore appoint the most possible mechanism to the superconducting vortices. The low-field absorption of microwave power with the assistance of dc magnetic field points to the small superconducting gap, and the relevant metastable excited states emerge to be vortices.”<p>It remains to be seen if this is a misunderstood experiment or a new discovery. Regardless, this is science operating as it should with people sharing the data that they have. But no need for the general public to speculate aimlessly.
Evidence of superconductivity in LK99 materials, presented by a Chinese team, is presumably the first experimental support for LK99-type superconductivity. The paper lacks evidence of zero resistance, attributed to the presence of only a small amount of superconducting material, "the long-standing vortex state can only be thought of stemming from superconductivity."
However, numerous modifications made to their material make it difficult to still refer to it as LK99.
A corresponding author (Yao Yao) wrote an explainer of the paper, which you should read together. The paper itself is pretty cryptic.<p><a href="https://www.zhihu.com/question/635259000/answer/3330698364" rel="nofollow noreferrer">https://www.zhihu.com/question/635259000/answer/3330698364</a>
<title>Strange memory effect of low-field microwave absorption in copper-substituted lead apatite</title><p>:| editorialized titles are click bait.<p>tldr; material has some strange characteristics. It's not superconducting.