Опубликованно: Application of the two-liquid model for ....

Jan 25, 2013 10:50

Новая работа, под названием "Application of the two-liquid model for the interpretation of the observed electrophysical properties of supercooled water in nonopores"принята к публикации в JETP Letters, примерно через год после начала войны с рецензентами, для раз'яснений пришлось написать два препринта а не один. Прикольно что что для разных рецензентов разные факты являлись проблемой или очевидными вещами.

Liquid-liquid phase transition model incorporating evidence for ferroelectric state near the lambda-point anomaly in supercooled water
Peter O. Fedichev, Leonid I. Menshikov (Submitted on 30 Jan 2012)
We propose a unified model combining the first-order liquid-liquid and the second-order ferroelectric phase transitions models and explaining various features of the $\lambda$-point of liquid water within a single theoretical framework. It becomes clear within the proposed model that not only does the long-range dipole-dipole interaction of water molecules yield a large value of dielectric constant $\epsilon$ at room temperatures, our analysis shows that the large dipole moment of the water molecules also leads to a ferroelectric phase transition at a temperature close to the lambda-point. Our more refined model suggests that the phase transition occurs only in the low density component of the liquid and is the origin of the singularity of the dielectric constant recently observed in experiments with supercooled liquid water at temperature T~233K. This combined model agrees well with nearly every available set of experiments and explains most of the well-known and even recently obtained results of MD simulations.
Comments: 6 pages, 4 pictures
Subjects: Soft Condensed Matter (cond-mat.soft)
Cite as: arXiv:1201.6193v1 [cond-mat.soft]

How does confinement in nano-scale pores change the thermodynamic properties and the nature of phase transitions of water?
P. O. Fedichev, L. I. Menshikov (Submitted on 15 Jun 2012)
We analyze thermodynamics of water samples confined in nanopores and prove that although the freezing temperature can be dramatically lower, the suppression of the ice nucleation leading to the freezing temperature depression is a truly macroscopic effect rather than a consequence of microscopic interactions. The freezing transition itself is a truly collective phenomenon described by a macroscopic order parameter (the nearly homogeneous density of the liquid within the pore away from the pores wall) exactly in the same way as in the bulk liquid. The thermodynamics properties of the confined and the bulk liquid can be described by macroscopic thermodynamics and be readily related to each other simply by proper inclusion of the additional Laplace pressure exerted by the solid-liquid boundary.
Comments: 3 pages, 1 eps figure
Subjects: Soft Condensed Matter (cond-mat.soft)
Cite as: arXiv:1206.3470v1 [cond-mat.soft]

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