纳米粒子在埋置位错网络图案化表面上的自组织生长
Self-Organized Growth of Nanoparticles on a Surface Patterned by a Buried Dislocation Network
摘要：
通过实时、原位掠入射小角和广角X射线散射，在室温下，在由底层位错网络图案化的Ag（001）表面上实现了具有10 nm周期性的Co纳米颗粒的自组织生长。在5nm厚的Ag薄膜和MgO（001）衬底之间的界面处，存在着失配位错网络，在表面上产生了周期性的应变场。成核和生长的钴拉伸区域被认为是最有利的网站突出的分子动力学模拟。
英文摘要：
The self-organized growth of Co nanoparticles with 10 nm periodicity was achieved at room temperature on a Ag(001) surface patterned by an underlying dislocation network, as shown by real time, in situ Grazing Incidence Small and Wide Angle X-ray Scattering. The misfit dislocation network, buried at the interface between a 5nm-thick Ag thin film and a MgO(001) substrate, induces a periodic strain field on top of the surface. Nucleation and growth of Co on tensile areas are found as the most favorable sites as highlighted by Molecular Dynamic simulations.
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