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Controlled damaging and repair of self-organized nanostructures by atom manipulation at room temperature

机译:在室温下通过原子操纵来控制自组织纳米结构的破坏和修复

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摘要

The possibility of controlled local demolition and repair of the recently discovered self-organized Pt nanowires on Ge( 001) surfaces has been explored. These nanowires are composed of Pt dimers, which are found to be rather weakly bound to the underlying substrate. Using this property, we demonstrate the possibility of carrying the constituting dimers of the Pt nanowires from point to point with atomic precision at room temperature. Pt dimers can be picked- up in two configurations: ( i) a horizontal configuration at the tip apex, resulting in double tip images and ( ii) a configuration where the Pt dimer is attached to the side of the tip apex, resulting in well- defined atomically resolved images.
机译:已经探索了控制局部拆除和修复Ge(001)表面上最近发现的自组织Pt纳米线的可能性。这些纳米线由Pt二聚体组成,发现它们与底层衬底的结合较弱。利用这一特性,我们证明了在室温下以原子精度从点到点携带Pt纳米线的构成二聚体的可能性。 Pt二聚体可通过两种配置拾取:(i)尖端顶部的水平配置,产生双尖端图像;(ii)Pt二聚体附着在尖端顶部侧面的配置,从而获得良好的成像效果-定义原子分解图像。

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