Electron energy-loss spectra of co-adsorbed Ni(100) surfaces
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説明
Abstract Electron energy-loss spectra of CO-adsorbed Ni(100) surfaces have been observed with concomitant measurements of LEED, AES, work function change, and electron impact desorption. Five CO-induced loss peaks are observed for the first time. The loss peaks at 5.8 and 8.6 eV are ascribed to the charge-transfer transitions ( Ni d π → CO 2 π ∗ and Ni d σ → CO 2 π ∗ , respectively), and the weak peaks at 11.8, 12.6 and 16.0 eV to the intra-molecular transitions ( 5σ → 2π ∗ , 1π → 2π ∗ and 4σ → 2π ∗ , respectively). The COCO adsorbate interaction is shown to shift the loss energy of the 12.6 eV peak. The adsorbed state of CO consistent with the results of LEED, AES, work-function change and electron impact desorption is discussed.
収録刊行物
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- Surface Science
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Surface Science 88 109-120, 1979-01-01
Elsevier BV
