This is why we want to study bilayer graphene systems.”A New Field EmergesWhen the graphene layers are misaligned, a new periodic design in the mesh emerges, called a moiré pattern. “The angle at which the two layers of graphene are misaligned — the twist angle — is critically important to the material’s electronic properties,” Wang said. That’s what’s making the study of twisted bilayer graphene such a hot field — superconductivity. Next Step“The twist angle is clearly very important in determining the properties of twisted bilayer graphene,” Zhang added. Also, can we combine the photoresponse and the superconductivity in twisted bilayer graphene?