Room-temperature superconductor

[Psi]

As already explained, a very simple, proper magnetic measurement of the susceptibility is required, AC and DC susceptibility.

In a localized domain superconductor the bulk material could have a combination of superconduction and semiconductor junctions. That's going to be tricky to measure magnetically.

Yeah, that's pretty what I suspect. 
There may very well be a superconducting compound in the sample but it's so heavily mixed up with other things that measuring it and getting results to conclusively identify superconductivity is extremely hard.

[Marco]

Some new hope for the hopefuls, or amusement for those who find it amusing to see people put trust in charlatans :
Magnetic field sorting of superconducting graphite particles with Tc>400K
https://arxiv.org/abs/2410.18020v1

[coppice]

Some new hope for the hopefuls, or amusement for those who find it amusing to see people put trust in charlatans :
Magnetic field sorting of superconducting graphite particles with Tc>400K
https://arxiv.org/abs/2410.18020v1

It has been claimed that graphite hosts superconductivity at room temperature, although all efforts to isolate it have been vain.

Sounds like a vanity project. 

[Marco]

Wouldn't simple decanting work to separate large amounts of graphite particles if they are truly superconducting? They'll get flux pinned in a magnetic field. Only up to the critical current so gravity might still win, but they should sink slower than non superconducting particles at least.

[johansen]

Wouldn't simple decanting work to separate large amounts of graphite particles if they are truly superconducting? They'll get flux pinned in a magnetic field.

So what we need to do is just make a heavy metal shotgun and randomly create millions of different materials and see what sticks.

May take a while..

[sslupsky]

Interesting indeed.