2008/11/27 by F Li, F. Li, G. Parteder +8
Chemistry · Materials Science · Physics and Astronomy · #Chemical engineering #Chemistry #Crystallography #Diffraction #Electron diffraction #Electronic and Structural Properties of Oxides #Low-energy electron diffraction #Magnetic and transport properties of perovskites and related materials #Manganese #Materials science #Metallurgy #Nanotechnology #Optics #Oxide #Oxygen #Phase (matter) #Phase diagram #Scanning tunneling microscope #Wetting #X-ray photoelectron spectroscopy #ZnO doping and properties #cond-mat.mtrl-sci
paper · pdf · doi:10.1088/0953-8984/21/13/134008
published as J. Phys.: Condens. Matter 21 (13), 134008 (2009) · 24 pages, 12 figures
arxiv created 2008/11/27 · openalex publication_date 2009/03/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Two-dimensional manganese oxide layers have been grown on Pd(100) and have been characterized by means of scanning tunnelling microscopy, low energy electron diffraction and x-ray photoelectron spectroscopy (XPS). The complex surface phase diagram of MnO(x) on Pd(100) is reported, where nine different novel Mn oxide phases have been detected as a function of the chemical potential of oxygen μ(O). Three regions of the chemical potential of oxygen can be identified, in which structurally related oxide phases are formed, often in coexistence at the surface. The different regions of μ(O) are reflected in the oxidation states of the respective Mn oxide nanolayers as revealed by the Mn 2p and O 1s XPS binding energies. The MnO(x) nanolayers form two-dimensional wetting layers and it is speculated that they mediate the epitaxial growth of MnO on Pd(100) by providing structurally graded interfaces.