IUVSTA 15th International Vacuum Congress (IVC-15), AVS 48th International Symposium (AVS-48), 11th International Conference on Solid Surfaces (ICSS-11)
    Surface Science Monday Sessions
       Session SS1-MoP

Paper SS1-MoP1
The Surface Sensitivity of the Unoccupied Bands of Mo(112)

Monday, October 29, 2001, 5:30 pm, Room 134/135

Session: Electronic Structure Poster Session
Presenter: H.-K. Jeong, University of Nebraska-Lincoln
Authors: H.-K. Jeong, University of Nebraska-Lincoln
T. Komesu, University of Nebraska-Lincoln
I.N. Yakovkin, National Academy of Sciences of Ukraine
P.A. Dowben, University of Nebraska-Lincoln
Correspondent: Click to Email
We present results of unoccupied states of Inverse photoemission on Mo (112). The data are compared with the calculated band structure. The comparison between the calculated and experimental bands along the of the surface Brillouin zone is key to the elucidation of the important features of the electronic structure of Mo (112) surface. Because the Brillouin zone does not change along for these two surfaces, the angle -resolved inverse photoemission spectra can be compared to determine surface sensitivity all along this symmetry direction from zone center to zone edge. Enhanced surface sensitivity of inverse photoemission from the comparison of spectra for clean and the p(1x2) oxygen covered surfaces has been investigated. In particular, different sensitivity of the surface states 0.5 eV and 2.2 eV to oxygen adsorption can be attributed to different symmetry of the states at the surface Brillouin zone center. Thus, the 0.5 eV state found to have a1 symmetry in theory, while the 2.2 eV band is found to be odd with respect to the mirror plane in theory.