Metal atoms were deposited on an Si (111)-7 × 7 surface, and they were adsorbed with alcohol gases (CH₃OH/C₂H₅OH/C₃H₇OH). Initially, C_nH_2n+1OH adsorption was simply used as an intermediate layer to prevent the chemical reaction between metal and Si atoms. Through scanning tunneling microscopy (STM) and a mass spectrometer, the C_nH_2n+1OH dissociation process is further derived as the construction of a surface quasi-potential with horizontal and vertical directions. With the help of three typical metal depositions, the surface characteristics of CH₃OH adsorption are more clearly presented in this paper. Adjusting the preheating temperature, the difference of thermal stability between CH₃O^– and H⁺ could be obviously derived in Au deposition. After a large amount of H⁺ was separated, the isolation characteristic of CH₃O^– was discussed in the case of Fe deposition. In the process of building a new metal-CH₃O^–-H⁺ model, the dual characteristics of CH₃OH were synthetically verified in Sn deposition. CH₃O^– adsorption is prone to influencing the interaction between the metal deposition and substrate surface in the vertical direction, while H⁺ adsorption determines the horizontal behavior of metal atoms. These investigations lead one to believe that, to a certain extent, the formation of regular metal atomic structures on the Si (111)-7 × 7-CH₃OH surface is promoted, especially according to the dual characteristics and adsorption models we explored.

中文翻译：

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探索 CH3OH 吸附到 Si (111)-7 × 7 表面金属原子结构的双重特性

金属原子沉积在 Si (111)-7 × 7 表面，并被酒精气体（CH ₃ OH/C ₂ H ₅ OH/C ₃ H ₇ OH）吸附。最初，C _n H _2n+1 OH 吸附只是用作中间层，以防止金属和硅原子之间发生化学反应。通过扫描隧道显微镜 (STM) 和质谱仪，进一步推导出C _n H _2n+1 OH 解离过程作为具有水平和垂直方向的表面准电位的构建。借助三种典型的金属沉积，CH ₃的表面特征OH 吸附在本文中得到了更清晰的呈现。调节预热温度，在金沉积中可以明显地推导出CH ₃ O ^-和H ⁺之间的热稳定性差异。大量H ⁺被分离后，在Fe沉积的情况下讨论了CH ₃ O ^-的分离特性。在构建新型金属-CH ₃ O ^– -H ⁺模型的过程中，在Sn沉积中综合验证了CH ₃ OH的双重特性。CH ₃ O ^–吸附容易影响垂直方向上金属沉积与基体表面的相互作用，而H ⁺吸附则决定了金属原子的水平行为。这些研究使人们相信，在一定程度上促进了 Si (111)-7 × 7-CH ₃ OH 表面规则金属原子结构的形成，特别是根据我们探索的双重特性和吸附模型。