论文标题
弦流络合物等离子体的三维结构
Three-dimensional structure of a string-fluid complex plasma
论文作者
论文摘要
在基于国际空间站基的plasmakristall-4设施中，研究了复杂（尘土）等离子体的三维结构。微粒悬浮液限制在极性切换的直流排放中。将实验结果与分子动力学模拟的结果进行了比较，其颗粒间相互作用电位表示为各向同性Yukawa和各向异性四极核项的叠加。模拟和实验数据均表现出定性相似的结构特征，表明散装液体样阶，其中包含与轴向电场对齐的固体样弦。鉴定了单个字符串，并计算了它们的尺寸光谱。发现尺寸光谱的衰减速率随着弦状结构特征的增强而降低。
Three-dimensional structure of complex (dusty) plasmas was investigated under long-term microgravity conditions in the International-Space-Station-based Plasmakristall-4 facility. The microparticle suspensions were confined in a polarity-switched dc discharge. The experimental results were compared to the results of the molecular dynamics simulations with the interparticle interaction potential represented as a superposition of isotropic Yukawa and anisotropic quadrupole terms. Both simulated and experimental data exhibited qualitatively similar structural features indicating the bulk liquid-like order with the inclusion of solid-like strings aligned with the axial electric field. Individual strings were identified and their size spectrum was calculated. The decay rate of the size spectrum was found to decrease with the enhancement of string-like structural features.
