January 30, 2023 Study: Superconductivity switches on and off in 'magic-angle' graphene type='text/javascript'> googletag. Nature Nanotechnology, the team reports that, by stacking magic-angle graphene between two offset layers of boron nitride—a two-dimensional insulating material—the unique alignment of the sandwich structure enabled the researchers to turn graphene's superconductivity on and off with a short electric pulse. It isn't clear what enables this switchable superconductivity, though the researchers suspect it has something to do with the special alignment of the twisted graphene to both boron nitride layers, which enables a ferroelectric-like response of the system