Magic twist angles of graphene sheets identified

Graphene is 200 times stronger than steel and can be as much as 6 times lighter. These characteristics alone make it a popular material in manufacturing. Researchers at the University of Illinois at Urbana-Champaign, including doctoral student Soumendu Bagchi, his adviser Huck Beng Chew in the Department of Aerospace Engineering, and collaborator Harley Johnson from Mechanical Sciences and Engineering, identified how twisted graphene sheets behave and their stability at different sizes and temperatures.