We have used a scanning tunneling microscope operated under ultrahigh vacuum conditions to investigate an oxo-vanadium-salen complex V(O)salen, that has potential applications as qubits in future quantum-based technologies. The adsorption and self-assembly of V(O)salen on a range of single crystal metal surfaces and nanoislands and the influence of substrate morphology and reactivity has been measured. On the close-packed flat Ag(111) and Cu(111) surfaces, the molecules adsorb isolated or form small clusters arranged randomly on the surface, whereas structured adsorption occurs on two types of Co nanoislands; Co grown on Ag(111) and Ag capped Co islands grown on Cu(111), both forming a Moiré pattern at the surface. The adsorption configuration can by scanning tunneling spectroscopy be linked to the geometric and electronic properties of the substrates and traced back to a Co d-related surface state, illustrating how the modulated reactivity can be used to engineer a pattern of adsorbed molecules on the nanoscale.

中文翻译：

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通过莫尔超结构实现铁磁体上图案化分子吸附的方法

我们使用在超高真空条件下运行的扫描隧道显微镜来研究氧钒 salen 络合物 V(O)salen，该络合物在未来基于量子的技术中作为量子位具有潜在的应用。测量了 V(O)salen 在一系列单晶金属表面和纳米岛上的吸附和自组装以及基材形态和反应性的影响。在密堆积的扁平Ag(111)和Cu(111)表面上，分子吸附分离或形成随机排列在表面上的小簇，而结构化吸附发生在两种类型的Co纳米岛上； Co 生长在 Ag(111) 上，Ag 覆盖的 Co 岛生长在 Cu(111) 上，两者都在表面形成莫尔图案。吸附构型可以通过扫描隧道光谱与基底的几何和电子特性联系起来，并追溯到与 Co d 相关的表面状态，说明如何使用调制的反应性来设计纳米级吸附分子的模式。