Ba and BaOx surface structures on Au(111)

被引:3
|
作者
Wu, Chen [1 ]
Castell, Martin R. [1 ]
机构
[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England
关键词
Scanning tunneling microscopy; Epitaxy; Growth; Oxidation; Surface structure; morphology; roughness; and topography; Barium and barium oxide; Au(111) substrate; SCANNING-TUNNELING-MICROSCOPY; BARIUM OXIDE-FILMS; O DOUBLE SYSTEM; THIN-FILM; ATOMIC-STRUCTURE; GOLD CATALYSTS; WORK FUNCTION; CO OXIDATION; NOX STORAGE; 0001; FACE;
D O I
10.1016/j.susc.2011.09.013
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
Scanning tunneling microscopy (STM) is used to investigate surface structures of barium and barium oxide grown on (22 x root 3)-reconstructed Au(111) surfaces. Evaporated Ba attaches to the Au herringbones after ultrahigh vacuum (UHV) annealing, forming a stripe pattern. Oxidation of the Ba stripes gives rise to a BaOx structure pinned to the Au herringbones. Conversely, well-ordered epitaxial BaOx structures can be obtained with oxidation of the deposited Ba by residual oxygen and subsequent UHV annealing. The two ordered BaOx phases, a (6 x 6) and a (2 root 3 x 2 root 3)-R30 degrees structure, coexist on the surface and lift the Au reconstruction. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:181 / 185
页数:5
相关论文
共 50 条
  • [1] Melamine structures on the Au(111) surface
    Silly, Fabien
    Shaw, Adam Q.
    Castell, Martin R.
    Briggs, G. A. D.
    Mura, Manuela
    Martsinovich, Natalia
    Kantorovich, Lev
    JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (30): : 11476 - 11480
  • [2] Surface Structures of Ultrathin TiOx Films on Au(111)
    Wu, Chen
    Marshall, Matthew S. J.
    Castell, Martin R.
    JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (17): : 8643 - 8652
  • [3] On-Surface Assembly of Au-Dicyanoanthracene Coordination Structures on Au(111)
    Yan, Linghao
    Pohjavirta, Ilona
    Alldritt, Benjamin
    Liljeroth, Peter
    CHEMPHYSCHEM, 2019, 20 (18) : 2297 - 2300
  • [4] NOx uptake/storage properties of BaOx/Pt(111) and BaOx/TiO2/Pt(111) model catalysts: Influence of surface structure and thermal aging
    Vovk, Evgeny I.
    Emmez, Emre
    Erbudak, Mehmet
    Bukhtiyarov, Valerii I.
    Ozensoy, Emrah
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2012, 243
  • [5] Adlayer structures of calixarenes on Au(111) surface studied with STM
    Pan, GB
    Bu, JH
    Wang, D
    Liu, JM
    Wan, LJ
    Zheng, QY
    Bai, CL
    JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (47): : 13111 - 13116
  • [6] Electronic and magnetic structures of Fe on a vicinal Au(111) surface
    Fujisawa, H
    Shiraki, S
    Furukawa, M
    Nantoh, M
    Kawai, M
    Nakamura, T
    Muro, T
    JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2005, 144 : 519 - 523
  • [7] Atomic and electronic structures of the Au2Sn surface alloy on Au(111)
    Shah, Jalil
    Wang, W.
    Sohail, Hafiz M.
    Uhrberg, R. I. G.
    PHYSICAL REVIEW B, 2021, 104 (12)
  • [8] Self-Assembled Structures of Benzoic Acid on Au(111) Surface
    Thu-Hien Vu
    Thomas Wandlowski
    Journal of Electronic Materials, 2017, 46 : 3463 - 3471
  • [9] Surface Structures of CsSnI3(001) Films on Au(111)
    She, Limin
    Shen, Zhitao
    Zhong, Dingyong
    JOURNAL OF PHYSICAL CHEMISTRY C, 2023, 127 (40): : 20101 - 20105
  • [10] Structures formed by tetrabromobiphenyl molecules with adapted orientations on the Au(111) surface
    Shingae, Shuto
    Sakaue, Hiroyuki
    Tominari, Yukihiro
    Yamada, Toshiki
    Tanaka, Shukichi
    Suzuki, Hitoshi
    CHEMICAL PHYSICS LETTERS, 2024, 849