We report investigations on gold single crystals carried out with the help of an original experimental set-up, combining a scanning tunneling microscope and a compression device under ultra high vacuum, that allows for in situ observations of stressed surfaces at the atomic scale. It is observed that a macroscopic compression strain may induce a reorganization of the Au(111) surface reconstruction, known as the chevron-like pattern. Molecular dynamics simulations using a modified embedded atom method potential have been carried out to highlight the elementary dislocation mechanisms at the origin of such an evolution.

中文翻译：

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外部应力作为控制 Au(111) 重建的一种方式

我们报告了在原始实验装置的帮助下对金单晶进行的研究，结合了扫描隧道显微镜和超高真空下的压缩装置，允许在原子尺度上对受压表面进行原位观察。据观察，宏观压缩应变可能会引起 Au(111) 表面重构的重组，称为 V 形图案。使用改进的嵌入原子方法潜力进行了分子动力学模拟，以突出这种演变起源的基本位错机制。