论文标题
甲型药物的领域增长：奴隶制，紧急形态和增长法
Domain Growth in Ferronematics: Slaved Coarsening, Emergent Morphologies and Growth Laws
论文作者
论文摘要
硝酸化学（FNS）是列液晶（NLC）中磁性纳米颗粒的悬浮液。他们吸引了很多实验性的关注，并且在科学和技术上都引起了极大的兴趣。 FN的理论研究很少，即使是平衡。在本文中，我们研究了该耦合系统中热淬灭（或变形）后结构域生长的非平衡现象。我们的建模基于两个顺序参数的耦合时间依赖的Ginzburg-Landau（TDGL）方程：LC张量订单参数$ {\ bf Q} $和磁化$ {\ bf m} $。我们认为来自高温无序相的浅淬灭和深淬灭。该系统因拓扑缺陷的碰撞和an灭而感到舒适。我们专注于奴隶制的粗糙，其中一个无序的$ {\ bf q} $（或$ {\ bf m} $）字段由订购的$ {\ bf m} $（或$ {\ bf q} $）字段驱动到coarsen。我们介绍了形态和生长法的详细结果，这些结果纯粹是由于磁敏感耦合而表现出异常的特征。据我们所知，这是对FNS中非平衡现象的首次研究。
Ferronematics (FNs) are suspensions of magnetic nanoparticles in nematic liquid crystals (NLCs). They have attracted much experimental attention, and are of great interest both scientifically and technologically. There are very few theoretical studies of FNs, even in equilibrium. In this paper, we study the non-equilibrium phenomenon of domain growth after a thermal quench (or coarsening) in this coupled system. Our modeling is based on coupled time-dependent Ginzburg-Landau (TDGL) equations for two order parameters: the LC tensor order parameter ${\bf Q}$, and the magnetization ${\bf M}$. We consider both shallow and deep quenches from a high-temperature disordered phase. The system coarsens by the collision and annihilation of topological defects. We focus on slaved coarsening, where a disordered ${\bf Q}$ (or ${\bf M}$) field is driven to coarsen by an ordered ${\bf M}$ (or ${\bf Q}$) field. We present detailed results for the morphologies and growth laws, which exhibit unusual features purely due to the magneto-nematic coupling. To the best of our knowledge, this is the first study of non-equilibrium phenomena in FNs.
