title: Photoemission from stepped W(110): initial or final state effect?
abstract: The electronic structure of the (110)-oriented terraces of stepped W(331) and W(551) is compared to the one of flat W(110) using angle-resolved photoemission. We identify a surface-localized state which develops perpendicular to the steps into a repeated band structure with the periodicity of the step superlattices. It is shown that a final-state diffraction process rather than an initial-state superlattice effect is the origin of the observed behavior and why it does not affect the entire band structure.
authors.affiliation: BESSY, Albert-Einstein-Str. 15, D-12489 Berlin, Germany.
authors.forename: A M
authors.initials: AM
authors.lastname: Shikin
authors.forename: A
authors.initials: A
authors.lastname: Varykhalov
authors.forename: G V
authors.initials: GV
authors.lastname: Prudnikova
authors.forename: V K
authors.initials: VK
authors.lastname: Adamchuk
authors.forename: W
authors.initials: W
authors.lastname: Gudat
authors.forename: O
authors.initials: O
authors.lastname: Rader