Graphene Gives 3D Graphite Twisted Powers

Stacking two slightly askew sheets of graphene on top of one another has in recent years led to phenomenal physics—including tunable superconductivity, quantum memory, and strange new states of matter involving “puddled” clumps of electrons. The curious behavior of these systems emerge with a “twist” angle between the hexagonal pattern in the two sheets as small as 1.1 degrees. And with so much new physics cropping up, technological applications of so-called twisted bilayer graphene have only begun to be imagined, with mysterious thermal, optical, electronic, material and other properties just waiting to be developed.