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物理学报. 1988, 37(2): 311-317.
doi: 10.7498/aps.37.311.
V(001)表面上(4×1)-O,(2×2)-S两超结构的角分辨光电子谱
- 收稿日期: 1986-11-17
- 修回日期: 1987-06-01
- 刊出日期: 1988-01-05
摘要: 用角分辨紫外光电子谱详细研究了V(001)表面上,S和O偏析引起的(4×1)-O,(2×2)-S两超结构,确定了S,O各自引起的吸附态的峰位和对称性;得到了O占据V(001)表面上空位的实验证据。所得实验结果与理论计算相等。
English Abstract
A ARUPS INVESTIGATION OF TWO SURFACE SUPERSTRU-CTURES (4×1)-O AND (2×2)-S ON VANADIUM(001) SURFACES
- Received Date:
17 November 1986
- Accepted Date:
01 June 1987
- Published Online:
05 January 1988
Abstract: Two surface superstructures (4×1)-O and (2×2)-S, induced respectively by oxygen and sulphur segregation on the V(001) surface, are studied in detail by ARVPS. The energy levels and symmetry of the adsorbate surface states derived from S- and O-ordered adsorbate over-layers are determined. Experimental evidence shows that the adsorption sites of oxygen on V(001) surface are four-fold hollow sites. All the experimental results consist with theoretical calculations, and are similar to that for oxygen on Ni(001) and Cr(001) surfaces.
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