Europhys. Lett.
Volume 66, Number 4, May 2004
Page(s) 527 - 530
Section Condensed matter: structure, mechanical and thermal properties
Published online 01 May 2004
Europhys. Lett., 66 (4) , pp. 527-530 (2004)
DOI: 10.1209/epl/i2003-10243-7

Ising model with temperature-dependent interactions

X. Campi and H. Krivine

Laboratoire de Physique Théorique et Modèles Statistiques Bât. 100, Université de Paris XI, F-91405 Orsay Cedex, France

(Received 16 December 2003; accepted in final form 23 March 2004)

We investigate the thermodynamics and clustering properties of lattice-gas models with temperature-dependent interactions. These simple models are able to mimic the shapes of the phase diagram of complex fluids, like some colloids and fluid mixtures. Percolation properties are straightforwardly obtained in the same framework.

64.70.-p - Specific phase transitions.
05.50.+q - Lattice theory and statistics (Ising, Potts, etc.).
82.70.-y - Disperse systems; complex fluids.

© EDP Sciences 2004