The team’s results are the first case of a 3D crystal with that property. The flat band term refers to the electron energy bands. Normally, the electrons change energy levels based on momentum.

Sometimes an extra layer of atoms squeezes between other layers during the crystal's formation; sometimes there are holes where atoms are missing. Later, after the metal has solidified ...

We have provided single-crystal samples to more than 60 research groups in the US and around the world. These materials include transition metal oxides and chalcogenides. Iridates: J eff = 1/2 ...