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Artículo
Derivation of the Casimir contribution to the binding potential for 3D wetting
(Taylor & Francis, 2023)
The renormalisation group theory of critical and tri-critical wetting transitions in three-dimensional systems with short-ranged forces, based on analysis of an effective Hamiltonian with an interfacial binding potential ...
Artículo
Filling and wetting transitions on sinusoidal substrates: a mean-field study of the Landau-Ginzburg model
(IOP Publishing, 2014)
We study the interfacial phenomenology of a fluid in contact with a one-dimensional array of infinitely long grooves of sinusoidal section, characterized by the periodicity length L and amplitude A. The system is modelled ...
Artículo
Bilayered smectic phase polymorphism in the dipolar Gay-Berne liquid crystal model
(AIP Publishing, 2009)
We present computer simulations of the Gay–Berne model with a strong terminal dipole. We report the existence of different stable antiferroelectric interdigitated bilayered phases in this model with diverse in-plane ...
Artículo
Phase transitions, interfacial fluctuations and hidden symmetries for fluids near structured walls
(Indian Academy of Sciences, 2005)
Fluids adsorbed at micro-patterned and geometrically structured substrates can exhibit novel phase transitions and interfacial fluctuation effects distinct from those characteristic of wetting at planar, homogeneous walls. ...
Artículo
Curvature corrections to the nonlocal interfacial model for short-ranged forces
(American Physical Society Sites, 2018-06-25)
In this paper we revisit the derivation of a nonlocal interfacial Hamiltonian model for systems with short-ranged intermolecular forces. Starting from a microscopic Landau-Ginzburg-Wilson Hamiltonian with a double parabola ...
Artículo
Wetting transition of a nematic liquid crystal on a periodic wedge-structured substrate
(EDP Sciences, 2007)
It is known that the wetting behaviour of a fluid is deeply altered by the presence of rough or structured substrates. We first review some simple considerations about isotropic fluids and rough substrates, and then we ...
Artículo
3D short-range wetting and nonlocality
(American Physical Society, 2008)
Analysis of a microscopic Landau-Ginzburg-Wilson model of 3D short-ranged wetting shows that correlation functions are characterized by two length scales, not one, as previously thought. This has a simple diagrammatic ...
Artículo
Filling and wetting transitions of nematic liquid crystals on sinusoidal substrates
(American Physical Society, 2011)
Close to sinusoidal substrates, simple fluids may undergo a filling transition, in which the fluid passes from a dry to a filled state, where the interface remains unbent but bound to the substrate. Increasing the surface ...
Artículo
Pattern-induced anchoring transitions in nematic liquid crystals
(IOP Publishing, 2016)
In this paper we revisit the problem of a nematic liquid crystal in contact with patterned substrates. The substrate is modelled as a periodic array of parallel infinite grooves of well-defined cross section sculpted on ...
Artículo
Liquid-gas separation in colloidal electrolytes
(American Institute of Physics Publising LLC, 2006)
The liquid-gas transition of an electroneutral mixture of oppositely charged colloids, studied by Monte Carlo simulations, is found in the low-temperature–low-density region. The critical temperature shows a nonmonotonous ...