Multilayer reconstruction of the W(001) surface.
Multilayer reconstruction of the W(001) surface.
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DOI：
10.1103/physrevb.38.5211
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发表时间：
1988-09
期刊：
影响因子：
--
通讯作者：
Altman;Estrup;Robinson
中科院分区：
文献类型：
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作者：
Altman;Estrup;Robinson
对W(001)清洁表面低温重建产生的半级棒强度分布的X射线衍射测量表明，出现了与层间距相对应的周期的意外调制。我们认为，这只能表明重建至少涉及两个层面的位移。第二层的原子位移是顶层的20%。
X-ray diffraction measurements of the half-order rod intensity profiles arising from the reconstruction of the clean W(001) surface at low temperature show an unexpected modulation with a period corresponding to the layer spacing. We argue that this can only indicate that the reconstruction involves displacements in at least two layers. The atomic displacements in the second layer are found to be 20% of those in the top layer.