Scientists discover a hidden quantum world inside cobalt

Yes, but will it revolutionize /quantum/ computing and AI? That's the magic incantantion without which any work is uninteresting. :^)

Without kidding now: Magnetic materials are fascinating.

Jeroen Belleman

I like that I can see the Cobalt 217Mhz resonance with my grid dip oscillator!

The paper talks about making its hexagonal closed packed cobalt film by evaporating fewer than 20 layers of cobalt atoms onto a 110-oriented tungsten surface, which itself had been carefully prepared.

The average home lab might not be able to manage this. It is still very interesting stuff, and if the films end up doing anything useful they will be mass-produced in huge volumes. There was a time when solar cells were equally exotic.

Yes

Tell us more please!

Is there Cobalt on the moon? Billionaires need a reason to start mining there.

I have a jar of indicating silica gel desiccant, the blue/pink indicator is cobalt chloride. Hold the GDO coil real close and very carefully tune around - there is a sharp narrow dip around 217MHz - great fun - diy NMR!

Amazing!

I had a grid dip meter ... but where is it.... Not used one in many years. Boxes full of stuff..

Probably less than there is on earth. The moon does has small solid iron core and a larger liquid iron core wrapped around that, but the radius is only about 20% of that of the moon itself.

The moon's core represents only a couple of present of the mass of the moon.

The earth's core represents about 50% of the mass of the planet, so there's a lot more iron, nickel and cobalt and other transition metals in there.

We actually dig most of what we use out of mines in the Congo - it has got about half of the known accessible reserves, very cheap miners and isn't too careful about environmental damage. Australia has a lot of the rest of the known reserves, but mining stuff here is more expensive.

The moon is probably safe from cobalt miners for quite a while yet.

Amazing!

I had a grid dip meter ... but where is it.... Not used one in many years. Boxes full of stuff..

Found this:

All depends what you GDO is next too.. Likely that 'ring' has its own resonance...

Ferrites are fun too, As a kid I had a crystal radio with a ferite core in a coil as antenna, you tuned it by sliding the core in and out, no big tuning capacitor needed. No antenna either.

Been winding coils and transformers ever since... This was also fun: