Many of these sheets are excellent conductors of electricity, but stanene is — in theory — extra-special. At room temperature, electrons should be able to travel along the edges of the mesh without colliding with other electrons and atoms as they do in most materials. This should allow the film to conduct electricity without losing energy as waste heat, according to predictions2 made in 2013 by Shou-Cheng Zhang, a physicist at Stanford University in California, who is a co-author of the latest study.
You know, it sounds like "2D matter" has some seriously awesome properties right now. Graphene could be a near-perfect building material, and stanene sounds like something extremely close to a room-temperature superconductor.