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The interaction between two chemically identical charge-regulated surfaces is studied using the classical density functional theory. In contrast to common expectations and assumptions, under certain realistic conditions we find a…

软凝聚态物质 · 物理学 2018-02-26 Arghya Majee , Markus Bier , Rudolf Podgornik

The wall cooling effect on the spectra and structures of thermodynamic variables are investigated in hypersonic turbulent boundary layers. The density and temperature can be divided into the acoustic and entropic modes based on the…

流体动力学 · 物理学 2023-05-19 Dehao Xu , Jianchun Wang , Shiyi Chen

We report a theoretical and simulation study of the drying and wetting phase transitions of a truncated Lennard-Jones fluid at a flat structureless wall. Binding potential calculations predict that the nature of these transitions depends on…

统计力学 · 物理学 2017-09-13 Robert Evans , Maria C. Stewart , Nigel B. Wilding

An extended theoretical study of interface potentials in adsorbed colloid-polymer mixtures is performed. To describe the colloid-polymer mixture near a hard wall, a simple Cahn-Nakanishi-Fisher free-energy functional is used. The bulk phase…

软凝聚态物质 · 物理学 2015-06-19 Jesper Koning , Yves Vandecan , Joseph Indekeu

Reproducible scanning tunneling microscope (STM) spectra of $Bi_2Sr_2CaCu_2O_{8+\delta}$ consistently exhibit asymmetric tunneling characteristics, with the higher peak conductance corresponding to a negatively biased sample. We consider…

强关联电子 · 物理学 2009-10-31 J. E. Hirsch

We develop the elastic theory for inversion-asymmetric tethered membranes and use it to identify and study their possible phases. Asymmetry in a tethered membrane causes spontaneous curvature, which in general depends upon the local…

统计力学 · 物理学 2019-06-05 Tirthankar Banerjee , Niladri Sarkar , John Toner , Abhik Basu

We investigate the properties of water along the liquid/vapor coexistence line in the supercooled regime down to the no-man's land. Extensive molecular dynamics simulations of the TIP4P/2005 liquid/vapor interface in the range 198 -- 348 K…

软凝聚态物质 · 物理学 2023-02-15 Alexander Gorfer , Christoph Dellago , Marcello Sega

We study hydrodynamics, heat transfer and entropy generation in pressure-driven microchannel flow of a power-law fluid. Specifically, we address the effect of asymmetry in the slip boundary condition at the channel walls. Constant, uniform…

流体动力学 · 物理学 2018-12-18 Vishal Anand , Ivan C. Christov

We prove comparison results for the Swendsen-Wang (SW) dynamics, the heat-bath (HB) dynamics for the Potts model and the single-bond (SB) dynamics for the random-cluster model on arbitrary graphs. In particular, we prove that rapid mixing…

概率论 · 数学 2014-05-15 Mario Ullrich

The phenomenon of electrowetting, i.e., the dependence of the macroscopic contact angle of a fluid on the electrostatic potential of the substrate, is analyzed in terms of the density functional theory of wetting. It is shown that…

软凝聚态物质 · 物理学 2014-05-07 Markus Bier , Ingrid Ibagon

The specific heats of exactly solvable alternating layered planar Ising models with strips of width $m_1$ lattice spacings and ``strong'' couplings $J_1$ sandwiched between strips of width $m_2$ and ``weak'' coupling $J_2$, have been…

统计力学 · 物理学 2013-10-30 Helen Au-Yang , Michael E. Fisher

he contact angle of a liquid droplet on a surface under partial wetting conditions differs for a nanoscopically rough or periodically corrugated surface from its value for a perfectly flat surface. Wenzel's relation attributes this…

软凝聚态物质 · 物理学 2020-06-24 Sergei A. Egorov , Kurt Binder

We show that condensation in a capped capillary slit is a continuous interfacial critical phenomenon, related intimately to several other surface phase transitions. In three dimensions (3d), the adsorption and desorption branches correspond…

统计力学 · 物理学 2007-05-23 A. O. Parry , C. Rascon , N. B. Wilding , R. Evans

In this paper we propose an extension of the Cahn method to binary mixtures and study the problem of wetting near a two-phase critical point without any assumption on the form of intermolecular potentials. A comparison between Cahn's method…

经典物理 · 物理学 2008-12-18 Henri Gouin , Sergey Gavrilyuk

In this paper we introduce a one-dimensional model of coupled fractional nonlinear Schr\"odinger equations with a double-well potential applied to one component. This study examines ground state (GS) solitons, observing spontaneous symmetry…

斑图形成与孤子 · 物理学 2024-10-29 Mateus C. P. dos Santos , Wesley B. Cardoso

Surface sensitive x-ray scattering techniques with atomic scale resolution are employed to investigate the microscopic structure of the surface of three classes of liquid binary alloys: (i) Surface segregation in partly miscible binary…

无序系统与神经网络 · 物理学 2007-05-23 Holger Tostmann , Elaine DiMasi , Oleg G. Shpyrko , Ben M. Ocko , Peter S. Pershan , Moshe Deutsch

The adsorption behavior of ions at liquid-vapor interfaces exhibits several unexpected yet generic features. In particular, energy and entropy are both minimum when the solute resides near the surface, for a variety of ions in a range of…

统计力学 · 物理学 2017-02-08 Suriyanarayanan Vaikuntanathan , Patrick R. Shaffer , Phillip L. Geissler

We report a first-principles density functional theory study on the role of grain boundary and dislocation loop in H blistering in W. At low temperature, the {\Sugma}3(111) tilt grain boundary, when combined with a vacancy of vanishing…

材料科学 · 物理学 2015-05-27 W. Xiao , W. T. Geng

Adsorption properties of chain fluids are of interest from both fundamental and industrial points of view. Density Functional Theory (DFT) based models are among the most appropriate techniques allowing to describe surface phenomena. At the…

统计力学 · 物理学 2019-02-20 Timur Aslyamov , Vera Pletneva , Aleksey Khlyupin

Standard models of sequential adsorption are implicitly formulated in a {\em scale invariant} form, by assuming adsorption on an infinite surface, with no characteristic length scales. In real situations, however, involving complex…

软凝聚态物质 · 物理学 2009-10-31 R. Pastor-Satorras , J. M. Rubi