Similarities in the insulating states of twisted bilayer graphene and cuprates

In recent decades, enormous research efforts have been expended on the exploration and explanation of high-temperature (high-Tc) superconductors, a class of materials exhibiting zero resistance at particularly high temperatures. Now a team of scientists from the United States, Germany and Japan explains in Nature how the electronic structure in twisted bilayer graphene influences the emergence of the insulating state in these systems, which is the precursor to superconductivity in high-Tc materials.