A nonequilibrium relaxation (NER) method was proposed to study the nonequilibrium relaxation behavior of a bond-orientational order parameter. The parameter was introduced to characterize the two-dimensional melting. Up to 512 independent samples were averaged and about 109 collisions were performed for each density. Time evolution of the system was performed by event-driven molecular dynamics simulation. The NER behavior of the bond orientational parameter indicates that the transition between the isotopic and hexatic phase is a Kosterlitz-Thouless transition.
|Journal||Physical Review E - Statistical, Nonlinear, and Soft Matter Physics|
|Issue number||4 2|
|Publication status||Published - 2004 Apr|
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Statistics and Probability
- Condensed Matter Physics