HA!
"Yazdani said the experiment should be fairly easy for other boffins to reproduce because it doesn't use exotic metals."
See, this is why I love science, ultra pure crystals of lead, a 2-story-tall tunneling microscope, a line of iron ATOMS, all cooled to a gnat's fart above the point where kinetic energy can even exist, and they say it should be fairly easy to reproduce.
I'm no science geek by a long shot (although I get the gist of this article, my understanding of it is...poor), if they taught us things like this in school I'd probably know a whole lot more.