H2O-induced quenching of the negative-ion resonance scattering for N2 physisorbed on Al(111)

✍ Scribed by K. Jacobi; M. Bertolo; P. Geng; W. Hansen; C. Astaldi

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 543 KB
• Volume: 173
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(90)85310-9

✦ Synopsis

Monolayers of Ns, physisorbed on the Al ( 111) surface at 20 R, were investigated by means of high-resolution electron energyloss speetroseopy (HREELS) and IJV photoelectron spectroscopy (UPS). The N2 stretching vibration at 290 meV is excited by negative-ion resonance scattering. By coadsorption of a 0.16 monolayer of HxO, the N2 stretching mode is strongly suppressed. This is explained as due to a complete quenching of the negative-ion resonance of NI by the HsO molecules.