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Interaction of oxygen with V (111) surface

Lidija Šiller ; Institute of Physics of the University Zagreb, Bijenička 46, Zagreb, Yugoslavia
Petar Pervan ; Institute of Physics of the University Zagreb, Bijenička 46, Zagreb, Yugoslavia
Milorad Milun ; Institute of Physics of the University Zagreb, Bijenička 46, Zagreb, Yugoslavia

Sažetak

Despite its present and prospective technological importance vanadium has not been very intensively studied in the surface science sense. The main reason for this situation lies in the difficulties to prepare a clean vanadium surface. The main impurities originating from the vanadium bulk are sulphur and oxygen. While sulphur may be removed and a surface maintained sulphur-free for a long time the oxygen removal is much harder task. It already caused discussions1-4) in the interpretation of LEED structures of clean V (100) surface. A clean V (110) surface has been reported5) as well as the polycrystalline vanadium surface6). To our best knowledge there is no study published on the interaction of oxygen with V (111) surface. We used the UPS, XPS and AES to study the oxygen/V (111) system in a temperature range 90-760 K. In the following sections we present the results of our cleaning procedure7) (and other relevant experimental information) and the UPS and XPS results obtained after oxygen adsorption on the V (111) surface at 90 K and 300 K.

Ključne riječi

Hrčak ID:

332033

URI

https://hrcak.srce.hr/332033

Datum izdavanja:

10.9.1991.

Podaci na drugim jezicima: hrvatski

Posjeta: 360 *