横向相互作用对二维格点上刚性长直杆临界行为的影响
The effect of the lateral interactions on the critical behavior of long straight rigid rods on two-dimensional lattices
摘要：
利用蒙特卡罗模拟和有限尺寸标度分析，研究了中等密度正方形格子上长度为k（k-mer）的刚性吸引杆的临界行为.发现了一个有序相，其特征是由大量的平行k-mer组成，这种有序相通过一个连续的转变从各向同性态中分离出来，该转变发生在一个中间密度θ c处，θ c随横向相互作用的大小线性增加。
英文摘要：
Using Monte Carlo simulations and finite-size scaling analysis, the critical behavior of attractive rigid rods of length k (k-mers) on square lattices at intermediate density has been studied. A nematic phase, characterized by a big domain of parallel k-mers, was found. This ordered phase is separated from the isotropic state by a continuous transition occurring at a intermediate density θ_c, which increases linearly with the magnitude of the lateral interactions.
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