this post was submitted on 06 Aug 2023
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I think it might still be too early to say for certain. It appears that a lot of the teams working on replication have pretty different outcomes and I think the theoretical studies have shown superconduction may be possible when a very specific structure forms, so maybe the formula just isn't perfected yet or it needs very specific conditions to form correctly. We'll know soon enough though, it's at the very least still an interesting material that deserves more looking into.
Has anyone been able to prove superconductivity?
If it's been proven that the levitation isn't a result of the Meissner effect, I don't see why there is any reason to believe that material is in a superconducting state.
Not at room temperature. According to the Wikipedia page, one team in China has a preliminary report stating they got superconductivity (or at least 10^-5Ω) at 110°K, so maybe that temperature can be increased somehow?
It would be worse than cuprate superconductors which need 130K.
The only proof of superconductivity is from simulations done by Berkely National Labs, but only when the copper atom is in a higher energy than normal position in the crystal lattice, making changes of it doing so in the current production technique small. For this reason I'm still holding out hope that it's just the synthesis process that needs refining, or if it really isn't a room temp superconductor, will at least lead to a proper room temp superconductor in the near future