title: Quasi-one-dimensional quantized states in an epitaxial Ag film on a one-dimensional surface superstructure.
abstract: The in-plane energy dispersion of quantized states in an ultrathin Ag film formed on the one-dimensional (1D) surface superstructure Si(111)-(4 x 1)-In shows clear 1D anisotropy instead of the isotropic two-dimensional free-electron-like behavior expected for an isolated metal film. The present photoemission results demonstrate that an atomic layer at the film-substrate interface can regulate the dimensionality of electron motion in quantum films.
authors.affiliation: Department of Physics, School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
authors.forename: Naoka
authors.initials: N
authors.lastname: Nagamura
authors.forename: Iwao
authors.initials: I
authors.lastname: Matsuda
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Miyata
authors.forename: Toru
authors.initials: T
authors.lastname: Hirahara
authors.forename: Shuji
authors.initials: S
authors.lastname: Hasegawa
authors.forename: Takashi
authors.initials: T
authors.lastname: Uchihashi