Data di Pubblicazione:
1994
Citazione:
Theory of phase transitions in binary mixtures / A. Parola, D. Pini, L. Reatto. - In: JOURNAL OF PHYSICS. CONDENSED MATTER. - ISSN 0953-8984. - 6:23 A(1994 Jun), pp. A167-A170. [10.1088/0953-8984/6/23A/023]
Abstract:
A microscopic approach for the description of critical phenomena in mixtures is presented. Near the critical point, the theory develops a renormalization group structure which allows for the identification of several possible critical behaviours corresponding to different fixed points. For a generic neutral binary mixture, the most stable fixed point gives rise to the same critical exponents as predicted by the well known phenomenological approach, providing a microscopic mechanism for such a behaviour. The order parameter psi is identified and two exact relations expressing psi in terms of experimentally accessible quantities are given. As an example, some results for the neon-krypton mixture are presented.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
hierarchical reference theory ; renormalization group ; order parameter ; binary mixtures ; argon-krypton mixture
Elenco autori:
A. Parola, D. Pini, L. Reatto
Link alla scheda completa: