Hydrogen-induced restructuring of close-packed metal surfaces: H/Ni(111) and H/Fe(110).
Hydrogen-induced restructuring of close-packed metal surfaces: H/Ni(111) and H/Fe(110).
复制标题
氢诱导密排金属表面重组：H/Ni(111) 和 H/Fe(110)。
DOI：
10.1103/physrevb.47.15969
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Müller
中科院分区：
文献类型：
--
作者：
Hammer;Landskron;Nichtl;Fricke;Heinz;Müller
我们报告说，氢可以诱导表面重建吸附，即使在紧密堆积的基板。对H/Ni（111）和H/Fe（110）的新的低能电子衍射分析表明，考虑重构对于令人信服的实验-理论拟合以及可靠地确定吸附位是必不可少的。有两种不同类型的重建：氢将镍原子从表面拉出来，但将铁原子推向主体。这些发现反映了两个系统的功函数变化的不同迹象，并证明了几何结构和电子结构之间的相关性。
We report that hydrogen can induce surface reconstructions by adsorption even on close-packed substrates. New low-energy electron-diffraction analyses for H/Ni(111) and H/Fe(110) show that consideration of reconstruction is essential for a convincing experiment-theory fit as well as for reliable determination of the adsorption site. There are two different types of reconstruction: Hydrogen pulls nickel atoms out of the surface but pushes iron atoms towards the bulk. These findings are mirrored by a different sign of work-function change for both systems and demonstrate the correlation between geometric and electronic Structure