title: Half-metallic carbon nanotubes.
abstract: Half-metallicity in carbon nanotubes is achieved and controlled by hydrogen adsorption patterns. The edge states in carbon nanotubes are unstable under an electric field due to the spin-conserving electron transfer between the edges, but a large enough transfer barrier between the edge states, obtained by controlling the adsorption patterns, renders the CNTs half-metallic.
authors.affiliation: Department of Physics and Institute for Nano Science, Korea University, Seoul 136-713, Republic of Korea.
authors.forename: Kyu Won
authors.initials: KW
authors.lastname: Lee
authors.forename: Cheol Eui
authors.initials: CE
authors.lastname: Lee
mesh_terms: D004583:Electrons; D006859:Hydrogen / Q000737:chemistry; D008670:Metals / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D037742:Nanotubes, Carbon / Q000737:chemistry*
chemical_list: D008670:Metals; D037742:Nanotubes, Carbon; D006859:Hydrogen