发表机构
University of Manitoba（曼尼托巴大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究通过分析二维条纹磁性系统中缺陷（特别是T型结点）的运动与消除，揭示了淬火后取向有序化的微观机制，并建立了实空间与倒易空间缺陷动力学的联系。
AI 中文摘要
我们研究了具有竞争相互作用的二维条纹形成磁性系统中取向有序的非平衡发展过程。在淬火进入条纹有序区域后，水平和垂直条纹组织成由特征缺陷分隔的取向区域（超域）。我们表明，向全局取向条纹态的演化是由这些缺陷的运动和消除所介导的，其中T型结点提供了超域重组的直接微观度量。T型结点数量揭示了与超域形成、生长和平衡化相关的不同动力学区域。温度、系统尺寸和平衡条纹宽度改变了这一演化的特征时间尺度，而热涨落则在较高温度下产生有限的缺陷数量。我们进一步表明，在实空间中观察到的缺陷动力学反映在结构因子中，提供了缺陷消除的倒易空间特征。这些结果为条纹形成磁性系统中的取向有序化建立了一个基于微观缺陷的描述。
英文摘要
We investigate the nonequilibrium development of orientational order in a two-dimensional stripe-forming magnetic system with competing interactions. Following a quench into the stripe-ordered regime, horizontal and vertical stripes organize into orientational regions(super-domains) separated by characteristic defects. We show that the evolution towards a globally oriented stripe state is mediated by the motion and elimination of these defects, with T-junctions providing a direct microscopic measure of super-domain reorganization. The T-junction population reveals distinct dynamical regimes associated with super-domain formation, growth, and equilibration. Temperature, system size, and equilibrium stripe width modify the characteristic time scales of this evolution, while thermal fluctuations produce a finite defect population at higher temperatures. We further show that the defect dynamics observed in real space are reflected in the structure factor, providing a reciprocal-space signature of defect elimination. These results establish a microscopic defect-based description of orientational ordering in stripe-forming magnetic systems.
