Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2009-07-10
Physics
Condensed Matter
Statistical Mechanics
Scientific paper
The Bell-Lavis model for liquid water is investigated through numerical simulations. The lattice-gas model on a triangular lattice presents orientational states and is known to present a highly bonded low density phase and a loosely bonded high density phase. We show that the model liquid-liquid transition is continuous, in contradiction with mean-field results on the Husimi cactus and from the cluster variational method. We define an order parameter which allows interpretation of the transition as an order-disorder transition of the bond-network. Our results indicate that the order-disorder transition is in the Ising universality class. Previous proposal of an Ehrenfest second order transition is discarded. A detailed investigation of anomalous properties has also been undertaken. The line of density maxima in the HDL phase is stabilized by fluctuations, absent in the mean-field solution.
Barbosa Marcia C.
Fiore Carlos E.
Henriques Vera B.
Szortyka Marcia
No associations
LandOfFree
Liquid polymorphism, order-disorder transitions and anomalous behavior: a Monte Carlo study of the Bell-Lavis model for water does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Liquid polymorphism, order-disorder transitions and anomalous behavior: a Monte Carlo study of the Bell-Lavis model for water, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid polymorphism, order-disorder transitions and anomalous behavior: a Monte Carlo study of the Bell-Lavis model for water will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-164969