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LK-99: Team of Southeast University observed zero resistance below 110 K
11–20 of 361 posts
Re: LK-99: Team of Southeast University observed zero resistance below 110 K
#12[deleted]
Re: LK-99: Team of Southeast University observed zero resistance below 110 K
#13Interesting. Some people are getting strong diamagnetism at RTP, and now someone is actually seeing zero resistance at a low temperature.
I'd take this as mildly positive news. It would be a surprising material if it were a high Tc (only in the LN2 sense) superconductor that is also strongly diamagnetic at room temperature (though I'm not sure if that's more surprising than a RTP superconductor).
Re: LK-99: Team of Southeast University observed zero resistance below 110 K
#14Certainly no expert here but if you take the original video and replications at face value it does exhibit strong diamagnetism at room temperature. Superconductors are diamagnetic due to the Meissner effect at their superconducting temperature. This would mean LK99 is a superconductor at low temperature and separately be strongly diamagnetic at room temperature (no Meissner effect if it's not super conducting). Would that be unusual?
Re: LK-99: Team of Southeast University observed zero resistance below 110 K
#15That's a failed repro then right?
Below 110K is below -163.15 Celcius
How would that compare to other superconductors?
Re: LK-99: Team of Southeast University observed zero resistance below 110 K
#16In the video, it says above 110K and not below, I got confused as well. I will add that a lot of people are deleting retweeting this. May be there is something more to it.
In the Resistance-Temperature graph ( https://twitter.com/Lipez400/status/1686793608626663441/phot... ) the resistance starts increasing from 110K
What’s the explanation for the sudden drop between 230K and 250K? It’s not dropping to zero but something is happening there.
Re: LK-99: Team of Southeast University observed zero resistance below 110 K
#17Why would other teams be observing floating at room temp? Is it possible to have a diamagnet that becomes a superconductor?
It’s possible there are tiny bits of superconducting stuff at room temperature which connect into bigger and bigger bits as temperature drops, until it starts working as a whole at 110K.
Maybe. Don’t quote me.
Re: LK-99: Team of Southeast University observed zero resistance below 110 K
#18> below 110 K
It is not room temperature, is it?
Re: LK-99: Team of Southeast University observed zero resistance below 110 K
#19[deleted]
Re: LK-99: Team of Southeast University observed zero resistance below 110 K
#20That's a failed repro then right? Below 110K is below -163.15 Celcius How would that compare to other superconductors?
Tc = 110 K would take the #4 spot on https://en.wikipedia.org/wiki/List_of_superconductors