Any undercover physicists/chemists wanting to shed light on the LK99 drama?

The Soviets at least had the style not to just make up shit, but also make up the scientists that they claimed made up that shit.

From what it seems (and note I'm not an authority in the matter,v just your everyday physicist.), It seems there's been a fundamental misunderstanding probably coming from a misinterpretation of empiric data.

Cuprids are a family of superconductor, but like all families, they only behave so at extremely low temperatures.

Experiment replication data shows that at ambient temperature, LK 99 behaves as a semiconductor (as expected).

However, the compound shows a distinct hike in resistivity which could easily be mistaken for superconductivity if not enough experiments at super low temperatures are conducted.

See, it probably still beats the temperature record for a superconductor of that family, at ~110K (and it has several interesting applications), but that is a *loooooong* shot from claiming room temperature superconductivity.

And I just realized I missed a critical point.

*Many* compounds or elements exhibit superconductive properties at low temperatures.

The holy grail is finding one that exhibits this at room temperature, which LK99 seems to fail at.

https://arxiv.org/abs/2307.16892

This paper claims to theoretically show lk99 could have room temperature super conductivity.

@lungdart

There has been six, at the time of writing, independent attempts to reproduce the results of the Korean team.

Of those, only one managed to correctly machine the pellet, and that one only showed superconductivity at 110K.

It is believed, for now, that the difficulty in machining the contacts for the pellet might have inadvertently caused natural short-circuits, which could mistakenly lead to claiming superconductivity.

I'll see if I can find the results in a free site.

https://doi.org/10.48550/...

https://doi.org/10.48550/...

https://doi.org/10.48550/...

@CoreFusionX And the Meissner levitation video? It's fake?

My basic Physics B.Sc knowledge says semiconductor aren't capable of that party trick...

@Fast-Nop But that Sovier Iris girl on Twitter is hilarious. Reading her Tweets gives me vibes of the Soviet cosmonaut in Armageddon.

@CoreFusionX Well, actually looking at the video carefully, the material is not rotating around some axis when probed, but it seems to be pinned in place.

No ides what this shit is.

@NickyBones

Yeah, none of the replication experiments observed Meissner effect either. Then again, as you correctly noted, the Korean video is not your usual Meissner effect.

That's why all of this is being taken with a truckload of salt by the scientific community.

I had no idea about any of this, but it's now the focus of my evening...

@AlmondSauce Good! I like to keep the DevRant crowd entertained :)

@NickyBones Iris sounds just like our kiki