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Phase-field crystal for an antiferromagnet with elastic interactions
Physical Review E, 2019We introduce a model which contains the essential elements to formulate and study antiferromagnetism, using the phase-field crystal framework. We focus on the question of how magneto-elastic coupling could lift the frustration in the two-dimensional hexagonal antiferromagnetic phase.
Niloufar Faghihi +3 more
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Phase-field-crystal simulation of nonequilibrium crystal growth
Physical Review E, 2014By using the phase field crystal model, we simulate the morphological transition of the crystal growth of equilibrium crystal shape, dendrite, and spherical crystal shape. The relationship among growth morphology, velocity, and density distribution is investigated.
Sai, Tang +6 more
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A Scalable Implicit Solver for Phase Field Crystal Simulations
2013 IEEE International Symposium on Parallel & Distributed Processing, Workshops and Phd Forum, 2013The phase field crystal equation (PFC) is a popular model for simulating micro-structures in materials science and is very computationally expensive to solve. A highly scalable solver for PFC modeling is presented in this paper. The equation is discredited with a stabilized implicit finite difference method and the time step size is adaptively ...
Chao Yang 0002, Xiao-Chuan Cai
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Phase-field-crystal methodology for modeling of structural transformations
Physical Review E, 2011We introduce and characterize free-energy functionals for modeling of solids with different crystallographic symmetries within the phase-field-crystal methodology. The excess free energy responsible for the emergence of periodic phases is inspired by classical density-functional theory, but uses only a minimal description for the modes of the direct ...
Michael, Greenwood +2 more
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Phase-Field-Crystal Model for Electromigration in Metal Interconnects
Physical Review Letters, 2016We propose an atomistic model of electromigration (EM) in metals based on a recently developed phase-field-crystal (PFC) technique. By coupling the PFC model's atomic density field with an applied electric field through the EM effective charge parameter, EM is successfully captured on diffusive time scales. Our framework reproduces the well-established
Nan, Wang +2 more
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Colloidal particles in a drying suspension: A phase field crystal approach
The European Physical Journal E, 2013Using a phase field crystal model we study the structure and dynamics of a drop of colloidal suspension during evaporation of the solvent. We model an experimental system where contact line pinning of the drop on the substrate is non-existent. Under such carefully controlled conditions, evaporation of the drop produces an ordered or disordered ...
Ganai, N., Saha, A., Sengupta, S.
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Phase Field Crystal Modeling for Nanocrystalline Growth
Advanced Materials Research, 2013The two-mode phase field-crystal (PFC) method is used to simulate the nanograin growth, including the grain growth in different sets of crystal planes, the grain boundary structure with mismatch, the grain orientation and also the incoherent grain boundary in two dimensional plane.
Ying Jun Gao +4 more
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Phase field crystal model of solute drag
Acta Materialia, 2012Abstract The atomic scale interaction of solute with a migrating grain boundary has been studied using a binary phase field crystal (PFC) model. This model bridges between atomistic and continuum simulation techniques as it operates on diffusive timescales but at atomistic length scales. For this study, a two-dimensional channel containing two grains
Michael Greenwood +2 more
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Selected issues of phase-field crystal simulations
The European Physical Journal Plus, 2011In this contribution our focus is on the phase-field crystal method, which can be viewed as the youngest methodology in the field of interface computation based on recent work by Elder et al. (Phys. Rev. Lett. 88, 245701 (2002)). It bridges the gap between the molecular simulation approaches and the phase-field approach by operating on diffusive time ...
H. Emmerich, L. Gránásy, H. Löwen
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