Numerical study of phase transitions in the pores of an aerogel (CROSBI ID 124250)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Uzelac, Katarina ; Hasmy, Anwar ; Jullien, Rémi
engleski
Numerical study of phase transitions in the pores of an aerogel
An aerogel of volume fraction c is modeled on a 3D lattice using diffusion-limited cluster-cluster aggregation in cubic boxes of sizes up to 20 × 20 × 20. A set of q-state Potts variables are disposed on the nonoccupied sites and their order-disorder phase transition is studied by means of a Monte Carlo technique for q=3 and q=4. It is found that the transition changes from first to second order above a nonzero threshold value of c. A comparison is made with the case of randomly occupied sites. The possible application to recent experimental results is discussed.
phase transitions ; aerogel ; Monte Carlo simulations ; random dilution ; scaling
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Podaci o izdanju
74 (3)
1995.
422-425
objavljeno
0031-9007
1079-7114
10.1103/PhysRevLett.74.422