在外部调制中,将相分离的二元合体系统与不同大小的粒子进行异型再混合
Suravi Pal1, Jaydeb Chakrabarti1, Srabani Chakrabarty2
1Department of Physics of Complex Systems, S. N. Bose National Centre for Basic Sciences, JD Block, Sector-III, Salt Lake, Kolkata 700106, India.
The Journal of chemical physics
|June 5, 2024
概括
外部调制影响二元合体系统,促进混合和对齐. 模拟显示了第一阶段过渡和减少扩散,增加调制强度.
科学领域:
- 体科学是一种体科学.
- 软物质物理学 软物质物理学
- 统计力学就是统计力学.
背景情况:
- 二元合体系统表现出复杂的相位行为.
- 可以使用外部场来控制合体自组装.
- 了解粒子相互作用和相位过渡至关重要.
研究的目的:
- 在外部周期调制下研究二元合体系统的相位行为.
- 通过调制引起的结构和动态变化的特征.
- 识别相位转换及其顺序.
主要方法:
- 蒙特卡洛模拟了排斥性的伦纳德-斯粒子 (直径比为2) 的二元混合物.
- 使用对相关函数,集群大小,结合角和顺序参数进行结构分析.
- 通过平均平方位移 (MSD) 计算进行动态分析.
主要成果:
- 在没有调制的情况下观察到自发脱.
- 增强混合和横向颗粒对齐,增加调制强度.
- 脱混合顺序参数中的不连续性表明了第一阶段阶段过渡.
- 特定热峰值尺度与系统大小线性.
- 增加调制的两个粒子类型的扩散系数下降.
结论:
- 外部周期调制有效地控制了二元合体系统中的相位行为.
- 一个第一阶段过渡是由调制强度诱导的.
- 调制导致粒子流动性降低和混合增强.
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