Angle-resolved photoemission from molecular N2 adsorbed on Ni(100) |
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| Authors: | PA Dowben Y Sakisaka TN Rhodin |
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| Institution: | 1. Fritz-Haber-Institut der Max - Planck-Gesellschaft, Faradayweg 4-6, D-1000 Berlin 33, Germany;2. School of Applied and Engineering Physics and Chemistry, The Materials Science Center, Cornell University, Ithaca, New York 14853, USA |
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| Abstract: | Angle-resolved photoemission has been used to study the band structure of the ordered c(2 × 2) molecular nitrogen overlayer chemisorbed on Ni(100). The molecular nitrogen chemisorbs to the Ni(100) with the molecular axis perpendicular to the surface. The 1πu, 3σg and 2σu (1π, 5σ and 4σ of adsorbed N2) orbitals of N2 are identified at 8.1 ± 0.05, 8.3 ± 0.1 and 12.8 ± 0.2 eV below the nickel Fermi energy at Г̄gG respectively. Angle-resolved photoemission of adsorbed molecular N2 exhibits several satellite lines with less kinetic energy than the primary molecular orbital emission. These satellite lines are a final state effect. A k∥ (parallel momentum vector) dependence of the satellite line intensity was observed. |
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