Krug K, Stettner J, Magnussen O M
Institut für Experimentelle und Angewandte Physik, Universität Kiel, Olshausenstrasse 40, 24098 Kiel, Germany.
Phys Rev Lett. 2006 Jun 23;96(24):246101. doi: 10.1103/PhysRevLett.96.246101. Epub 2006 Jun 20.
Direct in situ x-ray surface scattering studies of growth at a solid-liquid interface are demonstrated using the homoepitaxial electrodeposition on Au(100) as an example. With decreasing potential transitions from step-flow to layer-by-layer growth, manifested by layering oscillations in the x-ray intensity, then to multilayer growth, and finally back to layer-by-layer growth were observed. This complex growth behavior can be explained by the effect of anion coadsorbates and the potential-dependent Au surface reconstruction on the Au surface mobility.
以在Au(100)上的同质外延电沉积为例，展示了对固液界面生长的直接原位X射线表面散射研究。随着电势降低，观察到从台阶流生长到逐层生长的转变，这表现为X射线强度的分层振荡，然后转变为多层生长，最后又回到逐层生长。这种复杂的生长行为可以通过阴离子共吸附物的作用以及电势依赖的Au表面重构对Au表面迁移率的影响来解释。
