Adsorption of cobalt on the tenfold surface of d-Al72Ni11Co17 and on the fivefold surface of i-Al70Pd21Mn9
Adsorption of cobalt on the tenfold surface of d-Al72Ni11Co17 and on the fivefold surface of i-Al70Pd21Mn9
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钴在 d-Al72Ni11Co17 十倍表面和 i-Al70Pd21Mn9 五倍表面上的吸附
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
R. McGrath
中科院分区：
文献类型：
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作者：
J. Smerdon;J. Ledieu;J. Hoeft;D. Reid;L. Wearing;R. D. Diehl;T. Lograsso;A. R. Ross;R. McGrath
利用扫描隧道显微镜（STM）、俄歇电子能谱（AES）和低能电子衍射（LEED）研究了钴在d - Al72Ni11Co17的十重对称面以及i - Al70Pd21Mn9的五重对称面上的吸附行为。对d - Al72Ni11Co17上钴覆盖度为3 - 30毫层（ML）时独特的准周期LEED图案的分析表明，钴形成一种赝晶行结构，该结构由斐波那契间距行的畴组成，沿行方向的周期晶格参数为2.5±0.1 Å。在i - Al70Pd21Mn9的五重对称面上形成了相同的结构，尽管有序性较差且晶格参数较大。
The adsorption behaviour of Co on the tenfold surface of d-Al72Ni11Co17 and on the fivefold surface of i-Al70Pd21Mn9 has been studied using scanning tunnelling microscopy (STM), Auger electron spectroscopy (AES) and low-energy electron diffraction (LEED). The analysis of a distinctive quasiperiodic LEED pattern for coverages from 3–30 ML of Co on d-Al72Ni11Co17 suggests that the Co forms in a pseudomorphic row structure composed of domains of Fibonacci spaced rows having a periodic lattice parameter along the rows of 2.5 ± 0.1 Å. The same structure, though less well-ordered and with a larger lattice parameter, is formed on the fivefold surface of i-Al70Pd21Mn9.