Electron spin can be used to reduce contact resistance in graphene electronics
Researchers from the NUS discovered that manipulating the electron spin lowers the contact resistance in graphene electronics.
Graphene is an excellent conductor, but metal-graphene interfaces suffer from large electrical resistance. The researchers have shown that edga-contacted device geometries in metallic-graphene interfaces feature some of the lowest contact resistances reported to date - significantly lower than in surface-contracted interfaces. The researchers explain that this is due to the different behavior of electron spins in these geometries.