Identification of localised and delocalised adsorbate orbitals on W(100) by photoelectron spectroscopy

✍ Scribed by J.W. Linnett; D.L. Perry; W.F. Egelhoff Jr.

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 388 KB
• Volume: 36
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(75)80248-x

✦ Synopsis

The comparison of the photoelectron spccka cf chemisorbed layers taken with glancing photon incidence and those with normal photon incidence permits a qualitative dcterminaticn of the degree of delocalisation of the various orbitals at the surface. For glancing photon incidence, both localised and delocalised orbit& can bc photoionised.

However, for normally incident photons, those orbit& localised around particular atomic sites have a much higher photoionisaLion cross section than those orbit& extensively delocalised in the plane of the surface. Examples of this behaviour in the spectra of hydrogen and carbor .lonoxidc on W(lOO) arc presented.