3 ms·
On that note, I’d like to see a paper about the failed replication attempts especially from the Indian lab that ended up with a paramagnetic insulator. Not that
by supriyo-biswas 3y ago
On that note, I’d like to see a paper about the failed replication attempts especially from the Indian lab that ended up with a paramagnetic insulator. Not that I’d understand anything, but a comparison of various attempts might lead us to the understanding of what works and what doesn’t.
- i-use-nixos-btw 3y agoI would love to see it too. Papers about failed experiments are worth a lot more than no papers about failed experiments. Alas, it is rare.
- daniel-cussen 3y ago[dead]
- yorwba 3y agoI think this paper is by the Indian lab you're talking about https://arxiv.org/abs/2307.16402 https://arxiv.org/abs/2307.16402
- adrian_b 3y agoThis and the other theoretical paper that has been linked in another HN thread agree that there are chances of superconductivity only when copper substitutes lead in certain crystal positions and not in the other positions. If this is correct, then it is expected that it will be very hard to produce good samples, because when impurity atoms are introduced in a crystal it is very difficult to control the final positions of the atoms, when there is little energy difference between alternatives. Minor differences in heat treatment can cause great differences in the electrical and magnetic properties of the samples. So it is likely that some time will pass until we will know for sure whether this material can be a superconductor, unless some laboratory gets very lucky. I suppose that the reason why the Korean team was not really ready to publish their results is because they are not able yet to produce material samples in a reproducible manner.
- cryptonector 3y agoIt may also be that this sort of crystal is impossible to construct with uniformity and in large quantities. But there's still new chemistry here.