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In the present work, we study an electrolyte solution confined between planar surfaces with nonopatterned charged domains, which has been connected to a bulk ionic reservoir. The system is investigated through an improved Monte Carlo (MC)…

软凝聚态物质 · 物理学 2020-09-29 Amin Bakhshandeh , Maximiliano Segala , Thiago Colla

The structures of dilute electrolyte solutions close to non-uniformly charged planar substrates are systematically studied within the entire spectrum of microscopic to macroscopic length scales by means of a unified classical density…

软凝聚态物质 · 物理学 2022-11-23 Markus Bier , Maximilian Mußotter , S. Dietrich

We provide numerical evidence that hydrodynamic interactions are screened for charged polymers in salt solution on time scales below the Zimm time. At very short times, a crossover to hydrodynamic behavior is observed. Our conclusions are…

软凝聚态物质 · 物理学 2008-10-01 Jens Smiatek , Friederike Schmid

We present the SILVERRUSH program strategy and clustering properties investigated with $\sim 2,000$ Ly$\alpha$ emitters at $z=5.7$ and $6.6$ found in the early data of the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey exploiting…

Spherulites are complex polycrystalline structures that form through the self-assembly of small aggregated nanocrystals starting from a central point and growing radially outward. Despite their wide prevalence and relevance to fields…

We calculate the ion distributions around an interface in fluid mixtures of highly polar and less polar fluids (water and oil) for two and three ion species. We take into account the solvation and image interactions between ions and…

软凝聚态物质 · 物理学 2009-11-13 Akira Onuki

We investigate scaling rules for the ionization cross sections of multicharged ions on molecules of biological interest. The cross sections are obtained using a methodology presented in [Mendez et al. J. Phys B (2020)], which considers…

原子与分子团簇 · 物理学 2020-06-16 Alejandra M. P. Mendez , Claudia C. Montanari , Jorge E. Miraglia

When we place conducting bodies in electrolyte solutions, their surface potential $\Phi_s$ appears to be much smaller in magnitude than the intrinsic one $\Phi_0$ and normally does not obey the classical electrostatic boundary condition of…

软凝聚态物质 · 物理学 2024-08-09 Olga I. Vinogradova , Elena F. Silkina , Evgeny S. Asmolov

Integral equation of pure liquids, combined with a new "scaling approximation" based on a corresponding states treatment of pair correlation functions, is used to evaluate approximate structure factors for colloidal fluids constituted of…

We characterise the structural properties of the quasi-liquid layer (QLL) at two low-index ice surfaces in the presence of sodium chloride (Na$^+/$Cl$^-$) ions by molecular dynamics simulations. We find that the presence of a high surface…

化学物理 · 物理学 2022-09-28 Margaret L. Berrens , Fernanda C. Bononi , Davide Donadio

We study the selective adsorption of various cations into a layered slit system using grand canonical Monte Carlo simulations. The slit system is formed by a series of negatively charged membranes. The electrolyte contains two kinds of…

软凝聚态物质 · 物理学 2013-12-17 M. Valiskó , D. Henderson , D. Boda

In spite of their enormous applications as alternative energy storage devices and lubricants, room temperature ionic liquids (ILs) still pose many challenges from a pure scientific view point. We develop an IL microscopic theory in terms of…

软凝聚态物质 · 物理学 2020-02-05 Yael Avni , Ram M. Adar , David Andelman

Complexation of a long flexible polyelectrolyte (PE) molecule with oppositely charged spherical particles such as colloids, micelles, or globular proteins in a salty water solution is studied. PE binds spheres winding around them, while…

软凝聚态物质 · 物理学 2009-10-31 Toan T. Nguyen , Boris I. Shklovskii

We investigate the reliability of simulations of polyelectrolyte systems in aqueous environments, simulations that are performed using an efficient multi scale coarse grained polarizable pseudo-particle particle approach, denoted as pppl,…

软凝聚态物质 · 物理学 2024-01-01 Michel Masella , Fabien Léonforté

Understanding dielectric spectra can reveal important information about the dynamics of solvents and solutes from the dipolar relaxation times down to electronic ones. In the late 1970s, Hubbard and Onsager predicted that adding salt ions…

软凝聚态物质 · 物理学 2015-06-19 Marcello Sega , Sofia Kantorovich , Christian Holm , Axel Arnold

Molecular dynamics simulations for aqueous sodium chloride solutions were carried out at various concentrations. Supplementary to the Debye-H\"uckel theory, reversible transient nucleation of ions was observed even in dilute solutions. The…

软凝聚态物质 · 物理学 2014-11-26 Gan Ren , Yanting Wang

Effects of presence of ions, at moderate to high concentrations, on dynamical properties of water molecules are investigated through classical molecular dynamics simulations using two well known non-polarizable water models. Simulations…

软凝聚态物质 · 物理学 2015-01-14 Upayan Baul , Satyavani Vemparala

Optical near-fields of small dielectric particles are of particular importance and interests for nanoscale optical engineering such as field localization, fabrication, characterization, sensing and imaging. This paper represents a…

光学 · 物理学 2013-04-25 Zengbo Wang , Yi Zhou , Boris Luk'yanchuk

Molecular dynamics simulations of aqueous NaCl, KCl, NaI, and KI solutions are used to study the effects of salts on the properties of the liquid/vapor interface. The simulations use the models which include both charge transfer and…

软凝聚态物质 · 物理学 2016-03-24 J. D. Smith , S. W. Rick

The physical properties of ultrathin NaCl overlayers on the stepped Cu(311) surface have been characterized using scanning tunneling microscopy (STM) and spectroscopy, and density functional calculations. Simulations of STM images and…

材料科学 · 物理学 2009-11-10 F. E. Olsson , M. Persson , J. Repp , G. Meyer