应用原子和表面簇合物相互作用的5参数Morse势方法研究了氧原子在W低指数表面及(211)高指数表面上的吸附和振动.计算结果表明,低覆盖度下,在W(100)面氧原子吸附在四重洞位,随着覆盖度增加,(100)面发生缺行重构,膺式三重位为稳定吸附位;在W(110),(111)及(211)面,氧原子均趋向于吸附在膺式三重位.该计算结果和实验符合得很好.
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