Kristóf Tamás, Liszi János, Szalai István
Department of Physical Chemistry, University of Veszprém, Hungary.
Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Mar;71(3 Pt 1):031109. doi: 10.1103/PhysRevE.71.031109. Epub 2005 Mar 23.
The influence of polydispersity on the phase equilibrium properties and the heat capacity of a dipolar system with additional short-range (repulsive + attractive) interactions (modeled by a shifted Lennard-Jones pair potential) is studied by means of a Monte Carlo scheme. The particle distribution of the investigated system is realized in the semigrand ensemble by tuning appropriately the underlying particle distribution density. The phase coexistence and heat capacity data are calculated with and without an applied magnetic field, and the obtained results are compared with the data determined in a monodisperse equivalent of the system.
通过蒙特卡罗方法研究了多分散性对具有附加短程(排斥+吸引)相互作用(由位移的 Lennard-Jones 对势建模)的偶极系统的相平衡性质和热容的影响。通过适当调整基础粒子分布密度,在半巨正则系综中实现了所研究系统的粒子分布。计算了有无外加磁场时的相共存和热容数据,并将所得结果与在该系统的单分散等效物中确定的数据进行了比较。