Could indicate some superconducting regions in the whole sample, or some weird anisotropic superconduction at higher temps...

That sharp drop, if not equipment error, could be a lot of things.

That’s what I was thinking. In the video he brushes it off as a potential equipment malfunction, but perhaps it’s the effect everyone is looking for.

A sudden discontinuity like that but continuing the same curve and jumping back... that's equipment malfunction 99% of the time.

Seems reasonable, then again we're dealing with a potential superconductor where sudden discontinuity is the expected result.

And yet, they published that instead of figuring out what is possibly wrong with their gear which in turn may invalidate the rest of the their results. I'm not going to second guess their motivations though, they probably know what they are doing but it is interesting and deserves explanation.

Why publish this graph without running the measurements again though? Serious question since I’ve no idea about the effort needed to get this data.

I’ve got a small hope that they actually did and found the effect didn’t go away. They’ll still say ’equipment malfunction’, there isn’t any downside, only upside if it gets reproduced somewhere else.

I'm really curious what the eventual explanation of this is and whether other teams will observe this happening as well.