AVS 51st International Symposium
    Surface Science Monday Sessions
       Session SS-MoP

Paper SS-MoP19
The Coadsorption of Mercury and Molecular Icosahedra on Cu(100)

Monday, November 15, 2004, 5:00 pm, Room Exhibit Hall B

Session: Poster Session
Presenter: C.C. Ilie, University of Nebraska-Lincoln
Authors: C.C. Ilie, University of Nebraska-Lincoln
L.G. Rosa, University of Nebraska-Lincoln
S. Balaz, University of Nebraska-Lincoln
B. Doudin, University of Nebraska-Lincoln
P.A. Dowben, University of Nebraska-Lincoln
Correspondent: Click to Email
Mercury and alkali metal mixtures with molecules have a long history in the study of non-metal to metal transitions. Using photoemission and electron energy loss spectroscopy, we have investigated the changes in the electronic structure of molecularly adsorbed orthocarborane films as a function of Hg co-adsorption. Two scenarios for co-adsorption of Hg and the icosahedral molecule closo-1, 2 dicarbadodecaborane (orthocarborane) are considered. The mercury atoms may form a lattice which weakly interacts with orthocarborane lattice, or Hg may form a layer between the Cu substrate and orthocarborane molecular film. Mercury 5d@sub 5/2@ shallow core level widths in photoemission suggest interaction with the molecular film, but the binding energies of the molecular orbitals induced photoemission feature suggest that the interaction is weak.@FootnoteText@D. N. McIlroy, Jiandi Zhang, P. A. Dowben, P. Xu and D. Heskett, "Surface Science", 328, 47-57 (1995)