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In Part I of this work, we proposed a stochastic model describing solute interactions with stationary and moving grain boundaries (GBs) and applied it to planar GBs in 1D systems. The model reproduces nonlinear GB dynamics, solute…

材料科学 · 物理学 2023-11-10 Y. Mishin

We introduce and investigate the stochastic dynamics of the density of local extrema (minima and maxima) of non-equilibrium surface fluctuations. We give a number of exact, analytic results for interface fluctuations described by linear…

统计力学 · 物理学 2009-10-31 Z. Toroczkai , G. Korniss , S. Das Sarma , R. K. P. Zia

We study the surface growth generated by the random deposition of particles of different sizes. A model is proposed where the particles are aggregated on an initially flat surface, giving rise to a rough interface and a porous bulk. By…

统计力学 · 物理学 2010-03-19 F. L. Forgerini , W. Figueiredo

We study the scaling properties of self-flattening surfaces under global suppression on surface fluctuations. Evolution of self-flattening surfaces is described by restricted solid-on-solid type monomer deposition-evaporation model with…

统计力学 · 物理学 2009-11-07 Yup Kim , S. Y. Yoon , Hyunggyu Park

This paper presents a comprehensive analysis of simple models useful to analyze the growth of nanostructures obtained by cluster deposition. After detailing the potential interest of nanostructures, I extensively study the first stages of…

材料科学 · 物理学 2015-06-25 Pablo Jensen

A growth model for porous sedimentary rocks is proposed, using a simple computer simulation algorithm. We generate the structure by ballistic deposition of particles with a bimodal size distribution. Porosity and specific surface area are…

凝聚态物理 · 物理学 2009-10-30 Sujata Tarafdar , Shashwati Roy

The phase separation mechanism of a binary liquid mixture off-critically quenched in its miscibility gap is nucleation and growth, its homogeneous phase reaching a metastable equilibrium state. The successive stages of growth of the…

统计力学 · 物理学 2009-11-18 Jean Colombani , Jacques Bert

Persistence probabilities of the interface height in (1+1)- and (2+1)-dimensional atomistic, solid-on-solid, stochastic models of surface growth are studied using kinetic Monte Carlo simulations, with emphasis on models that belong to the…

统计力学 · 物理学 2007-05-23 M. Constantin , C. Dasgupta , P. Punyindu Chatraphorn , Satya N. Majumdar , S. Das Sarma

Dynamical simulations are a fundamental tool for studying the secular evolution of disc galaxies. Even at their maximum resolution, they still follow a limited number of particles and typically resolve scales of the order of a few tens of…

星系天体物理 · 物理学 2015-06-17 Francesca Iannuzzi , E. Athanassoula

We derive a stochastic nonlinear continuum theory to describe the morphological evolution of amorphous surfaces eroded by ion bombardment. Starting from Sigmund's theory of sputter erosion, we calculate the coefficients appearing in the…

材料科学 · 物理学 2007-05-23 Maxim Makeev , Rodolfo Cuerno , Albert-László Barabási

We introduce a set of statistical measures that can be used to quantify non-equilibrium surface growth. They are used to deduce new information about spatiotemporal dynamics of model systems for spinodal decomposition and surface…

统计力学 · 物理学 2009-11-10 Girish Nathan , Gemunu Gunaratne

We review understanding of kinetics of fluid phase separation in various space dimensions. Morphological differences, percolating or disconnected, based on overall composition in a binary liquid or density in a vapor-liquid system, have…

统计力学 · 物理学 2020-06-05 Subir K. Das , Sutapa Roy , Jiarul Midya

The paper studies a finite element method for computing transport and diffusion along evolving surfaces. The method does not require a parametrization of a surface or an extension of a PDE from a surface into a bulk outer domain. The…

数值分析 · 数学 2014-03-04 Joerg Grande , Maxim Olshanskii , Arnold Reusken

This paper studies an evolving bulk--surface finite element method for a model of tissue growth, which is a modification of the model of Eyles, King and Styles (2019). The model couples a Poisson equation on the domain with a forced mean…

数值分析 · 数学 2024-01-18 Dominik Edelmann , Balázs Kovács , Christian Lubich

To develop a dislocation-based statistical continuum theory of crystal plasticity is a major challenge of materials science.During the last two decades such a theory has been developed for the time evolution of a system of parallel edge…

材料科学 · 物理学 2021-05-12 István Groma , Péter Dusán Ispánovity , Thomas Hochrainer

I examine the molecular dynamics of ice growth from water vapor, focusing on how the attachment kinetics can be augmented by edge-dependent surface diffusion. Although there are significant uncertainties in developing an accurate physical…

材料科学 · 物理学 2020-12-25 Kenneth G. Libbrecht

A crystal surface which is miscut with respect to a high symmetry plane exhibits steps with a characteristic distance. It is argued that the continuum description of growth on such a surface, when desorption can be neglected, is given by…

统计力学 · 物理学 2009-10-31 Harald Kallabis

Motivated by recent experiments on multi-component membranes, the growth kinetics of domains on vesicles is theoretically studied. It is known that the steady-state rate of coalescence cannot be obtained by taking the long-time limit of the…

软凝聚态物质 · 物理学 2013-04-26 Kazuhiko Seki , Shigeyuki Komura , Sanoop Ramachandran

We study a stochastic model of urban growth generating spatial distributions of population densities at an intermediate mesoscopic scale. The model is based on the antagonist interplay between the two opposite abstract processes of…

物理与社会 · 物理学 2018-11-21 Juste Raimbault

A multi-phase-field model for the description of the discontinuous precipitation reaction is formulated which takes into account surface diffusion along grain boundaries and interfaces as well as volume diffusion. Simulations reveal that…

材料科学 · 物理学 2008-09-04 Lynda Amirouche , Mathis Plapp