This sounds important. Humans now have the ability to make materials with properties never before seen in the universe. That’s a big deal.
You can get semi-conducting behavior out of natural substances (search for “crystal radio” and “razor blade” for an example). But you’ be hard pressed to find anything on the planet outside of an IBM lab that can switch optical energy using magnetic fields.
Always a bit behind the curve, I’m finally understanding why nanotech is a big deal.