Figure 2: Half-filling insulating states in magic-angle TBG. Figure 4 ... become difficult to observe very close to the metal–insulator transition. Accurate determination of the twist angles ...

Engineers at ETH Zurich have now managed to tweak the overachieving material so that some parts of a flake can be an electrical insulator while ... Known as “magic angle twisted bilayer graphene ...

By twisting the top layer to a “magic angle” of 1.1 degrees off-kilter, the double-layer structure could suddenly shift between being an electrical insulator and a superconductor. In two new ...

Physicists at MIT and Harvard University claim they are able to tune graphene to behave as an insulator and a superconductor ... not on top of each other but in a precise angle of 1.1°. The physicists ...