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We describe a comprehensive model for the formation and morphological development of atmospheric ice crystals growing from water vapor, also known as snow crystals. Our model derives in part from empirical measurements of the intrinsic ice…

材料科学 · 物理学 2012-11-26 Kenneth G. Libbrecht

Classical theories of crystal nucleation and growth from the liquid assume activated processes that are interface limited, with the atoms individually joining the growing interface by jumps that occur at a rate that is determined by the…

原子物理 · 物理学 2023-01-02 Fangzheng Chen , Zohar Nussinov , K. F. Kelton

According to classical nucleation theory, a crystal grows from a small nucleus that already bears the symmetry of its end phase - but experiments with colloids now reveal that, from an amorphous precursor, crystallites with different…

材料科学 · 物理学 2014-07-15 László Gránásy , Gyula I. Tóth

We explore the crystallization in a colloidal monolayer on a structured template starting from a few-particle nucleus. The competition between the substrate structure and that of the growing crystal induces a new crystal growth scenario.…

软凝聚态物质 · 物理学 2013-07-09 Tim Neuhaus , Michael Schmiedeberg , Hartmut Löwen

Liquid mixtures of many interacting components often exhibit numerous coexisting types of droplets. An exciting example is the cytosol of biological cells, where diverse droplets, called condensates, are essential for cellular function.…

软凝聚态物质 · 物理学 2025-05-28 Yicheng Qiang , Chengjie Luo , David Zwicker

We present a new phase field crystal model for structural transformations in multi-component alloys. The formalism builds upon the two-point correlation kernel developed in Greenwood et al. for describing structural transformations in pure…

Geometrical constructions, such as the tangent construction on the molar free energy for determining whether a particular composition of a solution, is stable, are related to similar tangent constructions on the orientation-dependent…

材料科学 · 物理学 2007-05-23 J. W. Cahn , W. C. Carter

This paper provides an elementary introduction to the basic concepts used in describing epitaxial crystal growth in terms of the thermodynamics and kinetics of atomic steps. Selected applications to morphological instabilities of stepped…

材料科学 · 物理学 2007-05-23 Joachim Krug

We present theory and simulation of simultaneous chemical demixing and phase ordering in a polymer-liquid crystal mixture in conditions where isotropic-isotropic phase separation is metastable with respect to isotropic-nematic phase…

软凝聚态物质 · 物理学 2015-06-17 Ezequiel R. Soulé , Alejandro D. Rey

Thorough mixing of the starting materials is the first step of a crystal growth procedure. This holds true for almost any standard technique, whereas the intentional separation of educts is considered to be restricted to a very limited…

材料科学 · 物理学 2016-11-11 F. Freund , S. C. Williams , R. D. Johnson , R. Coldea , P. Gegenwart , A. Jesche

We present theory and simulation of simultaneous chemical demixing and phase ordering in a polymer-liquid crystal mixture in conditions where isotropic- isotropic phase separation is metastable with respect to isotropic-nematic phase…

材料科学 · 物理学 2015-05-13 Ezequiel R. Soulé , Alejandro D. Rey

The succession of suggested mechanisms of solid-state phase transitions - Second-order, Lambda, Martensitic, Displacive, Topological, Order-Disorder, Soft-mode, Incommensurate, Scaling and Quantum - are analyzed and explained why they…

材料科学 · 物理学 2013-12-30 Yuri Mnyukh

A continuum model of crystalline solid equilibrium is presented in which the underlying periodic lattice structure is taken explicitly into account. This model also allows for both point and line defects in the bulk of the lattice and at…

材料科学 · 物理学 2009-10-31 Paolo Cermelli , Shaun Sellers

We studied interplay between kinetic roughening and phase ordering in 1+1 dimensional single-step solid-on-solid growth model with two kinds of particles and Ising-like interaction. Evolution of both geometrical and compositional properties…

统计力学 · 物理学 2009-10-30 Miroslav Kotrla , Milan Predota

Crystalline alloys and related mixed systems make up a large family of materials with high tunability which have been proposed as the solution to a large number of energy related materials design problems. Due to the presence of chemical…

材料科学 · 物理学 2025-01-28 Pernilla Ekborg-Tanner , Petter Rosander , Erik Fransson , Paul Erhart

Colloidal model systems allow studying crystallization kinetics under fairly ideal conditions with rather well characterized pair interactions and minimized external influences. In complementary approaches therefore experiment, analytic…

软凝聚态物质 · 物理学 2015-06-19 Thomas Palberg

Understanding the growth of quasicrystals poses a challenging problem, not the least because the quasiperiodic order present in idealized mathematical models of quasicrystals prohibit simple local growth algorithms. This can only be…

无序系统与神经网络 · 物理学 2007-05-23 Uwe Grimm , Dieter Joseph

Several aspects of the theory of epitaxial crystal growth from atomic or molecular beams are developed from the perspective of statistical physics. Lectures are devoted to the rate equation theory of two-dimensional nucleation and its…

统计力学 · 物理学 2009-11-07 Joachim Krug

Complex crystal structures are composed of multiple local environments, and how this type of order emerges spontaneously during crystal growth has yet to be fully understood. We study crystal growth across various structures and along…

软凝聚态物质 · 物理学 2024-06-03 Maya M. Martirossyan , Matthew Spellings , Hillary Pan , Julia Dshemuchadse

Unlike atoms, colloidal particles are not identical, but can only be synthesised within a finite size tolerance. Colloids are therefore polydisperse, i.e. mixtures of infinitely many components with sizes drawn from a continuous…

软凝聚态物质 · 物理学 2009-11-07 R. M. L. Evans , C. B. Holmes