论文标题
液化过程中鞭毛的动力学和晶体学结构和绝缘底物的固化
Kinetics and the crystallographic structure of bismuth during liquefaction and solidification on the insulating substrate
论文作者
论文摘要
在这里，我们研究了通过沉积的脉冲激光（PLD）和分子束外交（MBE）在绝缘底物上生长在绝缘底物上生长的稀薄纤维膜的动力学，并通过原位电子和X射线衍射进行了研究。通过PLD，我们可以种植类似于使用MBE获得的膜，该膜由Ex-Situ AFM，KPFM，XRR和XRD研究。 Rheed和Synchrotron XRD实时监测液化溶解的过渡，从而导致脱水现象和球形液滴的形成，大小取决于初始膜厚度。为了更详细地研究这种相变，我们发现瞬时液化和凝固，从而形成了与（110）晶体学平面平行于底物的（110）晶体学平面。此外，我们通过分析记录的镜面衍射棒提出了两步生长机制。总体而言，我们表明，PLD和MBE可以用作高度控制的BI纳米结构生长的方法，包括它们在底物上的晶体学方向。
Here we study the kinetics of liquefaction and solidification of thin bismuth films grown on the insulating substrate by the pulsed laser deposited (PLD) and molecular beam epitaxy (MBE) and investigated by in situ electron and X-ray diffraction. By PLD, we can grow films similar to those obtained using MBE, studied by ex-situ AFM, KPFM, XRR, and XRD. The liquefaction-solidification transition is monitored in real-time by RHEED and synchrotron XRD, resulting in a dewetting phenomenon and the formation of spherical droplets which size depends on the initial film thickness. Studying this phase transition in more detail, we find instantaneous liquefaction and solidification, resulting in formation of the nanodots oriented with a (110) crystallographic plane parallel to the substrate. Furthermore, we propose a two-step growth mechanism by analyzing the recorded specular diffraction rods. Overall, we show that the PLD and MBE can be used as a method for the highly controlled growth of Bi nanostructures, including their crystallographic orientation on the substrate.
