Epitaxial growth of a metastable modification of copper with body-centered-cubic structure.
Epitaxial growth of a metastable modification of copper with body-centered-cubic structure.
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具有体心立方结构的铜亚稳态变体的外延生长。
DOI：
10.1103/physrevb.35.9322
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
Marcus
中科院分区：
文献类型：
--
作者：
Wang;Lu;Li;Jona;Marcus
缓慢沉积到一个干净的未加热的Fe {001}表面上的Cu产生的薄膜具有大量的缺陷，但仍然可检测到的结晶度。低能电子衍射表明，薄膜含有（有点扭曲）体心立方结构和相同或几乎相同的晶格参数作为底层基板的区域。俄歇电子能谱表明，结晶区基本上是纯铜，从而允许的结论是，一个亚稳态体心立方修改的铜已实现，与预测的总能带计算报告其他地方。
Slow deposition of Cu onto a clean unheated Fe {001} surface produced films with large amounts of defects, but still detectable crystallinity. Low-energy electron diffraction showed that the films contained regions with a (somewhat distorted) body-centered-cubic structure and the same or nearly the same lattice parameter as the underlying substrate. Auger-electron spectroscopy suggested that the crystalline regions were essentially pure Cu, thus allowing the conclusion that a metastable bcc modification of Cu has been realized, consistent with the predictions of total-energy band calculations reported elsewhere.