title: Cesium-filled single wall carbon nanotubes as conducting nanowires: scanning tunneling spectroscopy study.
abstract: Metal-filled single wall carbon nanotubes (SWCNTs) are examined for possible application to conducting wires in nanoelectronics architecture. The local electronic structure of SWCNTs partially filled with cesium atoms is studied with scanning tunneling spectroscopy. The conduction and valence bands are shifted downward with two localized states in the gap at the location where the Cs atoms are filled. From a first-principles calculation, we confirm that these two gap states are bound states originating from the two lowest conduction bands.
authors.affiliation: Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea.
authors.forename: S H
authors.initials: SH
authors.lastname: Kim
authors.forename: W I
authors.initials: WI
authors.lastname: Choi
authors.forename: G
authors.initials: G
authors.lastname: Kim
authors.forename: Y J
authors.initials: YJ
authors.lastname: Song
authors.forename: G-H
authors.initials: GH
authors.lastname: Jeong
authors.forename: R
authors.initials: R
authors.lastname: Hatakeyama
authors.forename: J
authors.initials: J
authors.lastname: Ihm
authors.forename: Y
authors.initials: Y
authors.lastname: Kuk