Ordering and phase transitions of charged particles in a classical finite twodimensional system
Abstract
We report a Monte Carlo study of phase transitions in a finite twodimensional (2D) system of charged classical particles which are confined by a circular parabolic or hardwall well. The groundstate configurations are found by static energy calculations and their structures are analyzed using the Voronoi constructions. A Mendeleev table for these classical 2Dlike atoms is obtained. We calculate the radial and angular components of the displacements of the particles as functions of temperature and determine the critical temperatures for the orderdisorder phase transitions. The intershell rotation and intershell diffusion transitions are investigated. The results are compared with Wigner crystallization in the infinite 2D system.
 Publication:

Physical Review B
 Pub Date:
 January 1994
 DOI:
 10.1103/PhysRevB.49.2667
 Bibcode:
 1994PhRvB..49.2667B
 Keywords:

 64.60.Cn;
 64.70.Dv;
 73.20.Dx;
 Orderdisorder transformations;
 statistical mechanics of model systems;
 Solidliquid transitions