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相关论文: Effective forces between colloids at interfaces in…

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We calculate the effective fluctuation induced force between spherical or disk-like colloids trapped at a flat, fluid interface mediated by thermally excited capillary waves. This Casimir type force is determined by the partition function…

软凝聚态物质 · 物理学 2007-11-13 H. Lehle , M. Oettel

For partially wetting, ellipsoidal colloids trapped at a fluid interface, their effective, interface--mediated interactions of capillary and fluctuation--induced type are analyzed. For contact angles different from 90$^o$, static interface…

软凝聚态物质 · 物理学 2008-07-11 H. Lehle , E. Noruzifar , M. Oettel

We analyze the effective potential for nanoparticles trapped at a fluid interface within a simple model which incorporates surface and line tensions as well as a thermal average over interface fluctuations (capillary waves). For a single…

软凝聚态物质 · 物理学 2010-09-06 H. Lehle , M. Oettel

We present exact derivations of the effective capillary wave fluctuation induced forces resulting from pinning of an interface between two coexisting phases at two points separated by a distance r. In two dimensions the Ising ferromagnet…

统计力学 · 物理学 2007-05-23 D. B. Abraham , F. H. L. Essler , A. Maciolek , ;

We present a detailed analysis of the effective force between two smooth spherical colloids floating at a fluid interface due to deformations of the interface. The results hold in general and are applicable independently of the source of…

软凝聚态物质 · 物理学 2007-05-23 M. Oettel , A. Dominguez , S. Dietrich

Within a general framework we study the effective, deformation-induced interaction between two colloids trapped at a fluid interface. As an application, we consider the interface deformation owing to the electrostatic field of charged…

软凝聚态物质 · 物理学 2007-05-23 Alvaro Dominguez , Martin Oettel , Siegfried Dietrich

We study the effective interaction between two ellipsoidal particles at the interface of two fluid phases which are mediated by thermal fluctuations of the interface. In this system the restriction of the long--ranged interface fluctuations…

软凝聚态物质 · 物理学 2009-05-30 Ehsan Noruzifar , Martin Oettel

We develop the scattering formalism to calculate the interaction between colloidal particles trapped at a fluid interface. Since, in addition to the interface, the colloids may also fluctuate in this system, we implement the fluctuation of…

软凝聚态物质 · 物理学 2015-06-16 Ehsan Noruzifar , Jef Wagner , Roya Zandi

We discuss the fluctuation-induced force, a finite-temperature analog of the Casimir force, between two inclusions embedded in a fluid membrane under tension. We suggest a method to calculate this Casimir interaction in the most general…

软凝聚态物质 · 物理学 2015-05-19 Hsiang-Ku Lin , Roya Zandi , Umar Mohideen , Leonid P. Pryadko

Within mean-field theory we determine the universal scaling function for the effective force acting on a single colloid located near the interface between two coexisting liquid phases of a binary liquid mixture close to its critical…

软凝聚态物质 · 物理学 2015-06-22 Adam D. Law , Ludger Harnau , Matthias Troendle , Siegfried Dietrich

The effective potential between charged colloids trapped at water interfaces is analyzed. It consists of a repulsive electrostatic and an attractive capillary part which asymptotically both show dipole--like behavior. For sufficiently large…

软凝聚态物质 · 物理学 2016-08-31 M. Oettel , A. Dominguez , S. Dietrich

For like charged colloidal particles two mechanisms of attraction between them survive when the interparticle distance is larger than the Debye screening length. One of them is the conventional van der Waals attraction and the second one is…

软凝聚态物质 · 物理学 2009-08-25 T. Ocampo-Delgado , B. Ivlev

Particles embedded in a fluctuating interface experience forces and torques mediated by the deformations and by the thermal fluctuations of the medium. Considering a system of two cylinders bound to a fluid membrane we show that the…

软凝聚态物质 · 物理学 2011-05-31 Pierre Gosselin , Hervé Mohrbach , Martin Michael Müller

In our study we investigate the behaviour of the net force (NF) emerging between an ellipsoidal particle and a thick plate (slab), when the interaction takes place in a near critical fluid medium with account for the omnipresent van der…

统计力学 · 物理学 2019-03-27 G. S. Valchev , D. M. Dantchev

We present a numerical study of the effective potential $V_\mathrm{eff}$ between two hard-sphere colloids dispersed in a solvent of interacting particles, for several values of temperature and solvent density, approaching the solvent…

软凝聚态物质 · 物理学 2013-04-08 Nicoletta Gnan , Emanuela Zaccarelli , Piero Tartaglia , Francesco Sciortino

A rigid object moving in a viscous fluid and in close proximity with an elastic wall experiences self-generated elastohydrodynamic interactions. This has been the subject of an intense research activity, with a recent and growing attention…

软凝聚态物质 · 物理学 2023-07-04 Aditya Jha , Yacine Amarouchene , Thomas Salez

We consider the contribution of thermal capillary waves to the interaction between a fluid-fluid interface and a nearby nanoparticle. Fluctuations are described thanks to an effective interaction potential which is derived using the…

软凝聚态物质 · 物理学 2019-12-20 Thomas Bickel

Fluctuations in fluid velocity and fluctuations in electric fields may both give rise to forces acting on small particles in colloidal suspensions. Such forces in part determine the thermodynamic stability of the colloid. At the classical…

软凝聚态物质 · 物理学 2013-05-29 D. Drosdoff , A. Widom

Within a general theoretical framework we study the effective, deformation-induced interaction between two colloidal particles trapped at a fluid interface in the regime of small deformations. In many studies, this interaction has been…

软凝聚态物质 · 物理学 2010-06-18 Alvaro Dominguez , Martin Oettel , Siegfried Dietrich

Two interaction mechanisms of particles in a fluid are proposed on base of forces, mediated by hydrodynamic thermal fluctuations. The first one is similar to the conventional van der Waals interaction, but instead of been mediated by…

软凝聚态物质 · 物理学 2009-11-07 B. I. Ivlev
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