论文标题
动态键合受ADATOM与一个原子高步边缘的接近性的影响
Dynamic bonding influenced by the proximity of adatoms to one-atom high step edges
论文作者
论文摘要
这里使用低温扫描隧道显微镜在低配位条件下研究表面上金原子的动态键合。在实验中，使用原子上的金尖，将金adatom沉积到具有原子精度的金表面上，上的第一个空心位置在步进边缘附近或远离其远处。在4.2 K处的经典分子动力学模拟和密度功能理论计算有助于阐明这两个不同位置之间的键合行为差异，同时还提供了基于其实验性能的STM TIPS的结晶分类信息。
Low-temperature scanning tunneling microscopy is used here to study dynamic bonding of gold atoms on surfaces under low coordination conditions. In the experiments, using an atomically-sharp gold tip, a gold adatom is deposited onto a gold surface with atomic precision either on the first hollow site near a step edge, or far away from it. Classical molecular dynamics simulations at 4.2 K and density functional theory calculations serve to elucidate the difference in the bonding behavior between these two different placements, while also providing information on the crystalline classification of the STM tips based on their experimental performance.
