论文标题
表面定向的旋律分解在形态图案上的底物上
Surface-directed Spinodal Decomposition on Morphologically Patterned Substrates
论文作者
论文摘要
本文是在{\ it表面指导的旋缺骨分解}（SDSD）上的两部分论述中的第二篇，即润湿动力学和相位分离的相互作用，该表面是由二元混合物的一种组成部分润湿的表面。在我们的第一篇论文[P. Das，P.K。 Jaiswal和S. Puri，物理。 Rev. e {\ bf 102}，012803（2020）]，我们研究了SDSD在化学异质和物理平坦的底物上。在本文中，我们研究了SDSD关于化学均匀但形态上构图的底物的SDSD。这些底物出现在各种各样的技术应用中。我们的目标是在这种情况下对SDSD提供理论上的理解。我们为底物内部和上方的域生长提供了详细的数值结果。形态演化可以从源自包括基板的不同表面的SDSD波的干扰来理解。
This paper is the second in a two-part exposition on {\it surface-directed spinodal decomposition} (SDSD), i.e., the interplay of kinetics of wetting and phase separation at a surface which is wetted by one of the components of a binary mixture. In our first paper [P. Das, P.K. Jaiswal and S. Puri, Phys. Rev. E {\bf 102}, 012803 (2020)], we studied SDSD on chemically heterogeneous and physically flat substrates. In this paper, we study SDSD on a chemically homogeneous but morphologically patterned substrate. Such substrates arise in a vast variety of technological applications. Our goal is to provide a theoretical understanding of SDSD in this context. We present detailed numerical results for domain growth both inside and above the grooves in the substrate. The morphological evolution can be understood in terms of the interference of SDSD waves originating from the different surfaces comprising the substrate.
