title: Fermi surface nesting and structural transition on a metal surface: In /Cu(001).
abstract: Peierls-type instability and structural phase transition are shown to occur on the surface of a normal metal. An In overlayer on Cu(001) undergoes a reversible transition at approximately 350 K. Scanning tunneling microscopy of the low-temperature, reduced-symmetry phase indicates a strong periodic lattice distortion (PLD). Angle-resolved photoemission of the high-temperature phase reveals that the In-derived surface resonance constitutes a square-shaped, quasi-two-dimensional Fermi surface within the projected bulk Cu bands. The Fermi surface exhibits one-dimensional nesting upon the transition, which is in agreement with the PLD periodicity.
authors.affiliation: Department of Chemistry, Graduate School of Science, Kyoto University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Nakagawa
authors.forename: G I
authors.initials: GI
authors.lastname: Boishin
authors.forename: H
authors.initials: H
authors.lastname: Fujioka
authors.forename: H W
authors.initials: HW
authors.lastname: Yeom
authors.forename: I
authors.initials: I
authors.lastname: Matsuda
authors.forename: N
authors.initials: N
authors.lastname: Takagi
authors.forename: M
authors.initials: M
authors.lastname: Nishijima
authors.forename: T
authors.initials: T
authors.lastname: Aruga