Article
Investigation of the Twofold Decagonal Al71.8Ni14.8Co13.4(1 0 0 0 0) Surface by SPA-LEED and He Diffraction
Surface Science
(2004)
Abstract
The twofold decagonal Al71.8Ni14.8Co13.4(1 0 0 0 0) surface is investigated by using highly surface sensitive elastic helium atom scattering (HAS) and high resolution spot profile analyzing low energy electron diffraction (SPA-LEED). SPA-LEED and HAS data reveal diffraction patterns of the top most surface layer consistent with those of the surfaces generated by bulk truncations. Strong diffraction peaks corresponding to an 8 Å periodicity are observed. These peaks are broadened along the quasiperiodic surface direction, reflecting a reduced correlation length of ≈80 Å of the 8 Å periodicity within the quasicrystalline planes. In addition very weak streaks corresponding to a 16 Å periodicity are observed.
Keywords
- Aluminum,
- Nickel,
- Cobalt,
- Surface structure,
- morphology,
- roughness,
- and topography,
- Atom–solid interactions
Disciplines
Publication Date
July, 2004
Publisher Statement
Copyright © 2004 Elsevier B.V. All rights reserved. DOI: 10.1016/j.susc.2004.05.100
Citation Information
Andreas Riemann. "Investigation of the Twofold Decagonal Al71.8Ni14.8Co13.4(1 0 0 0 0) Surface by SPA-LEED and He Diffraction" Surface Science Vol. 561 Iss. 2-3 (2004) Available at: http://works.bepress.com/andreas_riemann/10/