Surface-state Coulomb repulsion accelerates a metal-insulator transition in topological semimetal nanofilms
Surface-state Coulomb repulsion accelerates a metal-insulator transition in topological semimetal nanofilms
The emergence of quantization at the nanoscale, the quantum size effect (QSE), allows flexible control of matter and is a rich source of advanced functionalities. A QSE-induced transition into an insulating phase in semimetallic nanofilms was predicted for bismuth a half-century ago and has regained new interest with regard to …