Reentrant melting of a classical two-dimensional binary cluster
Faculty of Sciences. Physics
Faculty of Medicine and Health Sciences
AIP conference proceedings / American Institute of Physics. - New York
, p. 347-350
University of Antwerp
A system of classical charged particles interacting through a dipole repulsive potential, which are confined in a two-dimensional hardwall trap, is studied. The cluster consists of 16 particles, together with 4 defect particles. The technique of Brownian dynamics is used to simulate experimental binary colloidal systems . The melting properties and the reentrant behavior of the system, which was studied before for clusters of identical particles , are studied for the binary mixture. The defect particles, which have a smaller charge than the other particles, stabilize the cluster, melt at a higher value of the coupling parameter F as compared to the other particles and have a strong influence on the melting properties of the other particles.