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We propose a model for predicting the fluctuations of electron states in thin films as function of film thickness. The model was derived based on the assumption of the existence of potential barrier fluctuations on the film surface. Since…

介观与纳米尺度物理 · 物理学 2016-01-19 Mikrajuddin Abdullah

A detailed formulation for the effects of the surface integrity, i.e. surface topography, surface metallurgy, and surface mechanical properties, on the mechanics of ultra-thin films is proposed in the framework of linear elasticity. In this…

应用物理 · 物理学 2017-12-27 M. Shaat

We study the temporal growth pattern of surface fluctuations on a series of spinodally unstable polymer films where the degree of instability is controlled by the film thickness. For films in the deep spinodal region, the growth rate…

材料科学 · 物理学 2007-05-23 Y. J. Wang , Ophelia K. C. Tsui

The surface tension of monolayers with mixtures of anionic and nonionic surfactant at the liquid/vapour interface is studied. Previous works have observed that calculations of the surface tension of simple fluids show artificial…

Over the last decade computer simulations have had an increasing role in shedding light on difficult statistical physical phenomena and in particular on the ubiquitous problem of the glass transition. Here in a wide variety of materials the…

统计力学 · 物理学 2015-06-04 Smarajit Karmakar , Itamar Procaccia

Flow of a thin viscous film down a flat inclined plane becomes unstable to long wave interfacial fluctuations when the Reynolds number based on the mean film thickness becomes larger than a critical value (this value decreases as the angle…

流体动力学 · 物理学 2016-01-20 Alice B. Thompson , Dmitri Tseluiko , Demetrios T. Papageorgiou

Using the plasma model for the metal dielectric function we have calculated the electromagnetic fluctuation induced forces on a free standing metallic film in vacuum as a function of the film size and the plasma frequency. The force for…

量子物理 · 物理学 2009-11-13 Andrea Benassi , Carlo Calandra

Morphological instability of a planar surface ([111], [011], or [001]) of an ultra-thin metal film is studied in a parameter space formed by three major effects (the quantum size effect, the surface energy anisotropy and the surface stress)…

材料科学 · 物理学 2020-12-03 Mikhail Khenner

The stability of a thin liquid film bounded by two free surfaces is examined in the presence of insoluble surface active agents. The surface active agents not only cause gradients in surface tension, but could also render surface viscosity…

流体动力学 · 物理学 2019-03-01 Anjishnu Choudhury , Venkatesh Kumar Paidi , Sreeram K. Kalpathy , Harish N. Dixit

One of the long standing challenges in molecular simulation is the description of interfaces. On the molecular length scale, finite size effects significantly influence the properties of the interface such as its interfacial tension, which…

软凝聚态物质 · 物理学 2015-06-12 Stephan Werth , Sergey Lishchuk , Martin Horsch , Hans Hasse

We investigate finite-size effects on diffusion in confined fluids using molecular dynamics simulations and hydrodynamic calculations. Specifically, we consider a Lennard-Jones fluid in slit pores without slip at the interface and show that…

We examine the dynamics of a thin film formed by a distributed liquid source on a vertical solid wall. The model is derived using the lubrication approximation and includes the effects of gravity, upward airflow and surface tension. When…

流体动力学 · 物理学 2020-07-01 Yadong Ruan , Ali Nadim , Marina Chugunova

Wrinkling of stretched elastic sheets is widely observed, and the scaling relations between the amplitude and wavelength of the wrinkles have been proposed by Cerda and Mahadevan. However, the surface effects should be taken into account…

介观与纳米尺度物理 · 物理学 2013-11-22 Jie Gu

Recent experimental advances in surface science have made it possible to track the evolution of superconductivity in films as the thickness enters the nanoscale region where it is expected that the substrate plays an important role. Here,…

超导电性 · 物理学 2016-01-15 Aurelio Romero-Bermúdez , Antonio M. García-García

The study of viscous thin film flow has led to the development of highly nonlinear partial differential equations that model how the evolution of the film height is affected by different forces. We investigate a model of interaction between…

流体动力学 · 物理学 2024-07-25 Steven A Kedda , Michael C Dallaston , Scott W McCue

Molecular dynamics simulations are performed for a supercooled simple liquid with changing the system size from N=108 to $10^4$ to examine possible finite-size effects. Although almost no systematic deviation is detected in the static pair…

软凝聚态物质 · 物理学 2007-05-23 Kang Kim , Ryoichi Yamamoto

We study the effects of stochastic thermal fluctuations on the instability of the free surface of a flat liquid film upon a solid substrate. These fluctuations are represented as a standard Brownian motion that can be added to the…

流体动力学 · 物理学 2016-01-20 Javier A. Diez , Alejandro G. González , Roberto Fernández

We explore how thermal fluctuations affect the mechanics of thin amorphous spherical shells. In flat membranes with a shear modulus, thermal fluctuations increase the bending rigidity and reduce the in-plane elastic moduli in a…

软凝聚态物质 · 物理学 2017-01-18 Andrej Kosmrlj , David R. Nelson

Room temperature simulations of graphene have been performed as a function of the mechanical tension of the layer. Finite-size effects are accurately reproduced by an acoustic dispersion law for the out-of-plane vibrations that, in the…

材料科学 · 物理学 2017-03-01 R. Ramirez , C. P. Herrero

The dewetting of thin nanofilms is significantly impacted by thermal fluctuations, liquid-solid slip, and disjoining pressure, which can be described by lubrication equations augmented by appropriately scaled noise terms, known as…

流体动力学 · 物理学 2024-10-29 Yixin Zhang
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