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首页> 外文期刊>Advances in condensed matter physics >Spinodal Theory: A Common RupturingMechanism in Spinodal Dewetting and Surface Directed Phase Separation (Some Technological Aspects: Spatial Correlations and the Significance of Dipole-Quadrupole Interaction in Spinodal Dewetting)
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Spinodal Theory: A Common RupturingMechanism in Spinodal Dewetting and Surface Directed Phase Separation (Some Technological Aspects: Spatial Correlations and the Significance of Dipole-Quadrupole Interaction in Spinodal Dewetting)

机译：旋节线理论：旋节线去湿和表面定向相分离中的一种普遍的破裂机理（某些技术方面：空间相关性和旋节线去湿中偶极-四极相互作用的意义）

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The emerging structures in spinodal dewetting of thin nano films and spinodal decomposition of binary mixtures are found to be similar with certain differences attributed to the nonlinearities inherent in the wetting forces. This paper deals with the technological aspects of the spinodal processes by giving a brief account of the theory and to correlate the two phenomena termed as spinodal dewetting of thin nanofilms and surface-directed phase separation. The MC simulation micrographs at early stage of spinodal dewetting of a (linear) polymer film confined between two hard walls (using FENE potential between the beads on same chain and Morse potential between inter and intra chain beads) show similarities with surface-directed phase separation (using metropolis algorithm) in creation of holes. The spinodal dewetting is also criticized on the basis of global minimization of free energy emerging from dipole-quadrupole interactions. A novel molecular scale-driving mechanism coming from asymmetric interface formation in spinodal processes is also proposed. It can be believed that the modeling done with the films under confinement of two walls works as a classical mathematical ansatz to the dipole-quadrupole interaction coming from quantum origins and giving rise to lateral interactions in the process reflecting a colossal behavior in thin nano films though weak in nature.
机译：发现在纳米薄膜的旋节线去湿和二元混合物的旋节线分解中出现的结构相似，但归因于润湿力固有的非线性，存在某些差异。本文通过简要介绍该理论来处理旋节线工艺的技术方面，并将两种现象称为纳米薄膜的旋节线去湿和表面定向相分离。旋节线早期润湿限制在两个硬壁之间的（线性）聚合物膜的MC模拟显微照片（使用相同链上的小珠之间的FENE电势和链间和内链小珠之间的莫尔斯电势）显示了与表面定向相分离的相似性（使用都会算法）创建孔。在全球最小化偶极-四极相互作用产生的自由能的基础上，人们还对旋节线的去湿提出了批评。还提出了一种新的分子尺度驱动机制，该机制来自旋节线过程中不对称界面的形成。可以相信，在两层壁的限制下对薄膜进行的建模可作为经典的数学解析，用于量子起源的偶极-四极相互作用，并在该过程中产生横向相互作用，从而反映出纳米薄膜的巨大行为。本质上很弱。

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