Abstract

The surfaces of Yb–Si(111) and O–Yb–Si(111) structures (with a thickness of ytterbium nanofilms of 16 monolayers (6.08 nm)) have been investigated for the first time using scanning tunnel microscopy, which has provided data on the morphology and phase composition of these surfaces. It is found that, prior to oxygen adsorption, the nanofilms exhibit a high degree of homogeneity over their thickness, grow in accordance with a mechanism very close to the layer-by-layer growth, and have a homogeneous crystalline structure. After oxygen adsorption, an island layer of oxygen molecules is formed with a thickness of 0.112 nm. It is shown that the nanofilms morphology in the regions of the film surface coated by a monomolecular oxygen film changes significantly, while the morphology of the surface regions uncoated with the adsorbed layer remains unchanged.

中文翻译：

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tter纳米膜表面及其上吸附的氧分子层的扫描隧道显微镜

摘要

使用扫描隧道显微镜首次研究了Yb-Si（111）和O-Yb-Si（111）结构的表面（（纳米膜的厚度为16个单层（6.08 nm）），并提供了数据这些表面的形态和相组成。已经发现，在氧吸附之前，纳米膜在其厚度上显示出高度的均质性，按照非常接近逐层生长的机理生长，并且具有均匀的晶体结构。氧吸附后，形成厚度为0.112nm的氧分子岛层。结果表明，在被单分子氧膜覆盖的膜表面区域中，纳米膜的形态发生了显着变化，而未覆盖吸附层的表面区域的形态保持不变。