Twisted electronics open the door to tunable 2-D materials

Researchers report an advance that may revolutionize the field of 2-D materials such as graphene: a 'twistronic' device whose characteristics can be varied by simply varying the angle between two different 2-D layers placed on top of one another. The device provides unprecedented control over the angular orientation in twisted-layer devices, and enables researchers to study the effects of twist angle on electronic, optical, and mechanical properties in a single device.