Abstract Using Molecular Dynamics computer simulations, we study how an applied magnetic field influences the shape, integrity and internal structure of clusters formed by Stockmayer supracolloidal magnetic polymers (SMPs). We consider SMPs of four different topologies: chain-, Y-, X- and ring-like ones. We find that the highest macroscopic deformation and the strongest monomer rearrangements from a liquid to a local hexatic order is observed for clusters formed by chain-like SMPs. The highest magnetic susceptibility, however, is exhibited by the clusters composed of Y- and X-like SMPs. Clusters formed by ring-like SMPs are basically not affected by the field strengths considered here. It is worth mentioning that those fields are sufficient to cause the dissociation of the clusters formed by other topologies of SMPs.

中文翻译：

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外加磁场对 Stockmayer 超胶体磁性聚合物形成的团簇的影响

摘要 利用分子动力学计算机模拟，我们研究了外加磁场如何影响由 Stockmayer 超胶体磁性聚合物 (SMP) 形成的簇的形状、完整性和内部结构。我们考虑四种不同拓扑结构的 SMP：链状、Y 型、X 型和环状拓扑。我们发现，对于由链状 SMP 形成的簇，观察到最高的宏观变形和最强的单体重排，从液体到局部六元有序。然而，由 Y 和 X 类 SMP 组成的簇表现出最高的磁化率。由环状 SMP 形成的簇基本上不受这里考虑的场强的影响。值得一提的是，这些场足以引起其他 SMP 拓扑形成的簇的解离。