title: Structure and reactivity of Bi allotropes on the fivefold icosahedral Al-Pd-Mn quasicrystal surface.
abstract: The growth of Bi on a pseudomorphic Bi monolayer on the fivefold surface of the icosahedral Al-Pd-Mn quasicrystal has been investigated using low energy electron diffraction and scanning tunnelling microscopy. Initially randomly oriented pseudocubic islands are formed with a preference for an even number of layers. Subsequently a morphological transformation takes place to hexagonal Bi islands, which align along high symmetry directions of the substrate. The Bi flux is found to have a strong effect on which island structure is preferred. When C(60) is adsorbed on the three different allotropes of Bi present in this system, hexagonal C(60) islands are formed in each case. On the pseudocubic and hexagonal islands, the C(60) islands are aligned with the substrate. We discuss the energetic, kinetic and geometrical factors which influence the morphological transformation referred to above.
authors.affiliation: Surface Science Research Centre and Department of Physics, The University of Liverpool, Liverpool, UK.
authors.forename: J A
authors.initials: JA
authors.lastname: Smerdon
authors.forename: N
authors.initials: N
authors.lastname: Cross
authors.forename: V R
authors.initials: VR
authors.lastname: Dhanak
authors.forename: H R
authors.initials: HR
authors.lastname: Sharma
authors.forename: K M
authors.initials: KM
authors.lastname: Young
authors.forename: T A
authors.initials: TA
authors.lastname: Lograsso
authors.forename: A R
authors.initials: AR
authors.lastname: Ross
authors.forename: R
authors.initials: R
authors.lastname: McGrath