论文标题
将效果固定在二维集群玻璃中
Pinning effects in a two-dimensional cluster glass
论文作者
论文摘要
我们以数值方式研究了在固定障碍存在下的二维聚集单分散粒子系统的玻璃形成和渗透到的转变。成对相互作用的电位是非单调的，并且是由$ 1.5 $超导体的干预力激励的。由于没有潜在的疾病，因此由于干预剂相互作用而导致干预剂相互作用，因此可以形成簇玻璃。我们研究这些系统中涡流固定的影响。我们发现，中等深度的固定中心密度对涡旋玻璃形成的影响有限，即，涡流玻璃的形成由干预剂相互作用主导。在较高的密度下，固定会显着影响玻璃的形成。在恒定的驱动力下，将簇玻璃插入量是塑料的，其特征与非集群形成系统（例如簇合并和破裂）不同。我们发现，在具有集群相互作用的一般涡旋中，比常规涡流表现出更强的固定效果。
We study numerically the glass formation and depinning transition of a system of two-dimensional cluster-forming monodisperse particles in presence of pinning disorder. The pairwise interaction potential is nonmonotonic, and is motivated by the intervortex forces in type-$1.5$ superconductors. Such systems can form cluster glasses due to the intervortex interactions following a thermal quench, without underlying disorder. We study the effects of vortex pinning in these systems. We find that a small density of pinning centers of moderate depth has limited effect on vortex glass formation, i.e., formation of vortex glasses is dominated by intervortex interactions. At higher densities pinning can significantly affect glass formation. The cluster glass depinning, under a constant driving force, is found to be plastic, with features distinct from non-cluster-forming systems such as clusters merging and breaking. We find that in general vortices with cluster-forming interaction forces can exhibit stronger pinning effects than regular vortices.
