物理化学学报 >> 1994, Vol. 10 >> Issue (01): 73-76.doi: 10.3866/PKU.WHXB19940117

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Na(110)和Na2O(111)表面弛豫的研究

杨长生, 刘承红, 蓝田   

  1. 电子科技大学化学系，成都 610054
  • 收稿日期:1992-05-18 修回日期:1992-10-13 发布日期:1994-01-15
  • 通讯作者:

Study of Relaxation of Na(110) and Na2O(111) Surfaces

Yang Chang-Sheng, Liu Cheng-Hong, Lan Tian   

  1. Department of Chemistry, University Electron Science and Technology, Chengdu 610054
  • Received:1992-05-18 Revised:1992-10-13 Published:1994-01-15
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关键词: Na(110)表面弛豫, Na2O(111)表面弛豫, LEED谱, 能带理论

Abstract:

We have studied the relaxation of Na(110) and Na_2O(111) surfaces with LEED, and found that the best agreement between theory and experiment in such a structure, the surface layer distance d=0.291±0.01 nm (contracted 0.34%±0.01 nm) [for Na(110)]; and the three atomic surface layer distances d_1=0.117±0.01 nm (expanded 4.63%±0.01 nm), d_2=0.161±0.01 nm(expanded 0.063%±0.01 nm) and d_3=0.086±0.01 nm (expanded 0.75%±0.01 nm) [for Na_2O(111)].

Key words: Relaxation of Na(110) surface, Relaxation of Na2O(111) surface, LEED spectra, Band theory