Stabilization of the surface via oxygen adsorption—studied by high-resolution electron energy loss spectroscopy and scanning tunneling microscopy
Institut für Grenzflächenforschung und Vakuumphysik des Forschungszentrums
D-52425 Jülich, Germany
Corresponding author: firstname.lastname@example.org
Accepted: 29 June 2000
At 750 K, the adsorption of oxygen on the PdIn(111) surface was investigated by means of high-resolution electron energy loss spectroscopy (EELS), scanning tunneling microscopy (STM), low-energy electron diffraction (LEED), and Auger electron spectroscopy (AES). At 750 K, the oxygen atoms order in a perfect hexagonal superstructure with a lattice constant of 16 Å. The oxygen atoms are adsorbed on Pd sites showing a vibration mode at . The oxygen-covered surface has atomically flat terraces without defects or pin-holes in contrast to the clean surface. The oxygen superstructure induces a stabilization of the first atomic layers of the PdIn(111) surface.
PACS: 61.16.Ch – Scanning probe microscopy: scanning tunneling, atomic force, scanning optical, magnetic force, etc / 68.60.Dv – Thermal stability; thermal effects / 78.30.Er – Solid metals and alloys
© EDP Sciences, 2000