团簇形成体系的吸附时间尺度
Adsorption time scales of cluster-forming systems
摘要：
考虑了具有竞争作用的团簇形成体系中吸附的微观模型。吸附过程由主方程描述，并通过动力学蒙特卡罗方法建模。研究了粒子在平面三角晶格上吸附过程中粒子浓度和相互作用能的演化规律。模拟结果显示了不同的行为系统的时间演化取决于温度和化学势，最后在系统中的集群的形成。吸附的特征弛豫时间根据吸附物最终平衡态的热力学参数在几个数量级上变化。对于高度有序的吸附物平衡态，观察到颗粒的非常快的吸附。
英文摘要：
A microscopic model of adsorption in cluster forming systems with competing interaction is considered. The adsorption process is described by the master equation and modelled by a kinetic Monte Carlo method. The evolution of the particle concentration and interaction energy during the adsorption of particles on a plane triangular lattice is investigated. The simulation results show a diverse behavior of the system time evolution depending on the temperature and chemical potential and finally on the formation of clusters in the system. The characteristic relaxation times of adsorption vary in several orders of magnitude depending on the thermodynamic parameters of the final equilibrium state of the adsorbate. A very fast adsorption of particles is observed for highly ordered adsorbate equilibrium states.
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