论文标题
集群形成系统的吸附时间尺度
Adsorption time scales of cluster-forming systems
论文作者
论文摘要
考虑了具有竞争相互作用的群集形成系统中吸附的微观模型。吸附过程由主方程描述，并通过动力学蒙特卡洛方法进行建模。研究了颗粒浓度和相互作用能在平面三角晶格上吸附过程中的演变。模拟结果表明，根据温度和化学电位以及系统中簇的形成，系统时间演变的不同行为。吸附的特征放松时间在几个数量级上有所不同，这取决于吸附物最终平衡态的热力学参数。对于高度有序的吸附物平衡状态，观察到非常快的颗粒吸附。
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.
