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Charge transfer is a fundamental process that underlies a multitude of phenomena in chemistry and biology. Recent advances in observing and manipulating charge and heat transport at the nanoscale, and recently developed techniques for…

介观与纳米尺度物理 · 物理学 2016-07-26 Galen T. Craven , Abraham Nitzan

For surface-mediated processes, such as on-surface synthesis, epitaxial growth and heterogeneous catalysis, a constant slope in the Arrhenius diagram of the corresponding rate of interest against inverse temperature, $\log R$ {\it vs}…

Hydrogen embrittlement remains a critical challenge in structural and electronic applications of copper (Cu) but its mechanism is still not fully understood. In this study, we combine density functional theory (DFT) and bond-order potential…

材料科学 · 物理学 2026-03-17 Vasileios Fotopoulos , Alexander L. Shluger

The friction coefficient of a particle can depend on its position as it does when the particle is near a wall. We formulate the dynamics of particles with such state-dependent friction coefficients in terms of a general Langevin equation…

软凝聚态物质 · 物理学 2009-11-13 A. W. C. Lau , T. C. Lubensky

In this paper, we consider a diffuse-interface gas-liquid two-phase flow model with inhomogeneous temperatures, in which we employ the Peng-Robinson equation of state and the temperature-dependent influence parameter instead of the van der…

数值分析 · 数学 2018-08-01 Jisheng Kou , Shuyu Sun

The phenomenon of the glass transition is an unresolved problem of condensed matter physics. Its prominent feature, the super-Arrhenius temperature dependence of the transport coefficients remains a challenge to be described over the full…

软凝聚态物质 · 物理学 2015-06-04 B. Schmidtke , N. Petzold , R. Kahlau , M. Hofmann , E. A. Rossler

The evolution of grain structures in materials is a complex and multiscale process that determines the material's final properties. Understanding the dynamics of grain growth is a key factor for controlling this process. We propose a…

材料科学 · 物理学 2012-04-12 D. T. Hristopulos , L. Leonidakis , A. Tsetsekou

One of the most fundamental quests in the physics of active matter concerns the existence of a comprehensive theory for its macroscopic properties, i.e. an ``active thermodynamics''. Here, we derive and experimentally verify key elements of…

软凝聚态物质 · 物理学 2025-09-08 Lorenzo Caprini , Umberto Marini Bettolo Marconi , Benno Liebchen , Hartmut Löwen

We investigate the role of the form of the spatial diffusion coefficient in shock acceleration of fast particles. Referring to non-classical diffusion and using the results of numerical (hybrid) simulations tailored for the downstream shock…

天体物理学 · 物理学 2008-11-25 R. A. Treumann

Many important properties of granular fluids can be represented by a system of hard spheres with inelastic collisions. Traditional methods of nonequilibrium statistical mechanics are effective for analysis and description of the inelastic…

软凝聚态物质 · 物理学 2009-11-07 James W. Dufty , J. Javier Brey , James Lutsko

We extend an infrared-deformed soft-wall anti de-Sitter/QCD model at zero temperature to a model at finite temperature and perform hydrodynamics. To have the infalling boundary condition to make the hydrodynamic analysis possible, we treat…

高能物理 - 唯象学 · 物理学 2013-07-25 Shingo Takeuchi , Yue-Liang Wu

Using molecular dynamics simulations and integral equations (Rogers-Young, Percus-Yevick and hypernetted chain closures) we investigate the thermodynamic of particles interacting with continuous core-softened intermolecular potential.…

软凝聚态物质 · 物理学 2007-05-23 Alan B. de Oliveira , Paulo A. Netz , Thiago Colla , Marcia C. Barbosa

Surface reconstructions of Au film on Pd(110) substrate are studied using a local Einstein approximation to quasiharmonic theory with the Sutton-Chen interatomic potential. Temperature dependent surface free energies for different coverages…

凝聚态物理 · 物理学 2009-10-28 J. A. Nieminen

We present the results of a large scale molecular dynamics computer simulation in which we investigated the static and dynamic properties of a silica melt in the temperature range in which the viscosity of the system changes from O(10^-2)…

统计力学 · 物理学 2009-10-31 Jurgen Horbach , Walter Kob

The diffusion of tungsten in {\alpha}-iron is important for the application of ferritic-iron alloys to thermal power plants. These data, over a wide temperature range across the Curie temperature, have been recently reported. We show that…

材料科学 · 物理学 2017-02-01 V. Katsika-Tsigourakou , E. S. Skordas

A complete thermodynamical analysis for a binary mixture of viscous Korteweg fluids with two velocities and two temperatures is developed. The constitutive functions are allowed to depend on the diffusion velocity and the specific internal…

流体动力学 · 物理学 2021-09-23 Matteo Gorgone , Francesco Oliveri , Patrizia Rogolino

In this work we study the diffusion mechanisms in lithium disilicate melt using molecular dynamics simulation, which has an edge over other simulation methods because it can track down actual atomic rearrangements in materials once a…

材料科学 · 物理学 2014-05-30 Luis G. V. Gonçalves , José P. Rino

While advances in computation are enabling finer grid resolutions in numerical weather prediction models, representing land-atmosphere exchange processes as a lower boundary condition remains a challenge. This partially results of the fact…

大气与海洋物理 · 物理学 2019-01-03 Fabien Margairaz , Eric Pardyjak , Marc Calaf

Recent experimental data on the diffusion coefficient of carbon in alpha-iron below liquid nitrogen temperature (LNT) question the classical approach to the observed temperature dependence. As the temperature is lowered below LNT, the…

材料科学 · 物理学 2007-05-23 Ludwik Dabrowski , Alexander Andreev , Mladen Georgiev

The effective thermal diffusivity is evaluated for a two dimensional real solid and the real solid is modeled with periodic surface. The result contain the scale factor for the conformal transformation that flattens the surface. We find…

其他凝聚态物理 · 物理学 2015-05-29 Aniruddha Chakraborty