Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Fitxers

651100.pdf (1.44 MB)

Tipus de document

Article

Versió

Versió publicada

Data de publicació

2014-04-04

Llicència de publicació

cc-by-nc-nd (c) Bianco, Valentino et al., 2014
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/65592

Critical behavior of a water monolayer under hydrophobic confinement

Títol de la revista

Autors

Director/Tutor

ISSN de la revista

Títol del volum

Recurs relacionat

http://dx.doi.org/10.1038/srep04440

Resum

The properties of water can have a strong dependence on the confinement. Here, we consider a water monolayer nanoconfined between hydrophobic parallel walls under conditions that prevent its crystallization. We investigate, by simulations of a many-body coarse-grained water model, how the properties of the liquid are affected by the confinement. We show, by studying the response functions and the correlation length and by performing finite-size scaling of the appropriate order parameter, that at low temperature the monolayer undergoes a liquid-liquid phase transition ending in a critical point in the universality class of the two-dimensional (2D) Ising model. Surprisingly, by reducing the linear size L of the walls, keeping the walls separation h constant, we find a 2D-3D crossover for the universality class of the liquid-liquid critical point for L/h=~50, i.e. for a monolayer thickness that is small compared to its extension. This result is drastically different from what is reported for simple liquids, where the crossover occurs for , and is consistent with experimental results and atomistic simulations. We shed light on these findings showing that they are a consequence of the strong cooperativity and the low coordination number of the hydrogen bond network that characterizes water.

Matèries

Termodinàmica, Transformacions de fase (Física estadística), Fenòmens crítics (Física)

Matèries (anglès)

Thermodynamics, Phase transformations (Statistical physics), Critical phenomena (Physics)

Citació

Col·leccions

Articles publicats en revistes (Física de la Matèria Condensada)
Publicacions de projectes de recerca finançats per la UE

Citació

BIANCO, Valentino and FRANZESE, Giancarlo. Critical behavior of a water monolayer under hydrophobic confinement. Scientific Reports. 2014. Vol. 4, num. 4440, pags. 1-10. ISSN 2045-2322. [consulted: 14 of August of 2026]. Available at: https://hdl.handle.net/2445/65592

Exportar metadades

JSON - METS

Compartir registre