STACKING OF AG LAYERS ON PT(111)

被引:20
作者
RANGELOV, G
FAUSTER, T
STRUBER, U
KUPPERS, J
机构
[1] UNIV MUNICH, SEKT PHYS, D-80799 MUNICH, GERMANY
[2] UNIV BAYREUTH, D-95440 BAYREUTH, GERMANY
关键词
LOW INDEX SINGLE CRYSTAL SURFACES; PHOTOELECTRON DIFFRACTION; PLATINUM; SILVER; SINGLE CRYSTAL EPITAXY; SURFACE STRUCTURE; X-RAY PHOTOELECTRON SPECTROSCOPY;
D O I
10.1016/0039-6028(95)00335-5
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Ultrathin Ag films grown epitaxially on Pt(111) were studied by photoelectron forward scattering using synchrotron radiation. The complete angular distributions of the Ag 3d electrons at similar to 500 eV kinetic energy were recorded in a cone with 88 degrees opening angle using a two-dimensional display-type analyzer. The images reveal that the second Ag layer grows at room temperature predominantly in a hcp stacking sequence with respect to the pseudomorphic first Ag layer, After annealing to 750 K most of the second layer Ag atoms assume fee sites, Further Ag layers continue to grow in a fee stacking sequence relative to the first two Ag layers. Annealing does not change the stacking of thicker films. Thick fee Ag films can be grown in a twin orientation with respect to the Pt(111) substrate at room temperature or in the substrate orientation if the second Ag layer is annealed.
引用
收藏
页码:948 / 951
页数:4
相关论文
共 50 条
  • [31] Cerium oxide layers on Pt(111): a scanning tunneling microscopy study
    Berner, U
    Schierbaum, K
    THIN SOLID FILMS, 2001, 400 (1-2) : 46 - 49
  • [32] Pt-dimer dissociation on Pt(111)
    Feibelman, PJ
    Michely, T
    SURFACE SCIENCE, 2001, 492 (1-2) : L723 - L728
  • [33] Chlorine adsorption on Pt(111) and Pt(110)
    Schennach, R
    Bechtold, E
    SURFACE SCIENCE, 1997, 380 (01) : 9 - 16
  • [34] SURFACE VIBRATIONS OF AD-CLUSTERS ON METAL-SURFACES - AG-N/PT(111)
    BLANDIN, P
    MASSOBRIO, C
    BALLONE, P
    SURFACE SCIENCE, 1995, 331 : 771 - 775
  • [35] A single h-BN layer on Pt(111)
    Cavar, E.
    Westerstrom, R.
    Mikkelsen, A.
    Lundgren, E.
    Vinogradov, A. S.
    Ng, May Ling
    Preobrajenski, A. B.
    Zakharov, A. A.
    Martensson, N.
    SURFACE SCIENCE, 2008, 602 (09) : 1722 - 1726
  • [36] Strain analysis of epitaxial ultrathin films on Pt(111)
    Sambi, M
    Granozzi, G
    SURFACE SCIENCE, 1998, 400 (1-3) : 239 - 246
  • [37] Adsorption and structure of N2 on Pt(111)
    Zeppenfeld, P
    David, R
    Ramseyer, C
    Hoang, PNM
    Girardet, C
    SURFACE SCIENCE, 2000, 444 (1-3) : 163 - 179
  • [38] Exchange effect on alloy formation of Co/Ag/Pt(111) ultrathin films
    Shern, CS
    Wu, YF
    Wu, YE
    SURFACE SCIENCE, 1999, 439 (1-3) : L779 - L784
  • [39] Reduction of Ag+ irreversibly adsorbed on cyanide-modified Pt(111)
    Mwanda, Jonathan A.
    Cuesta, Angel
    JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2021, 896
  • [40] Competing processes and controlling energies at the Ag/Ge(111) interface
    Venables, JA
    Metcalfe, FL
    Sugawara, A
    SURFACE SCIENCE, 1997, 371 (2-3) : 420 - 430