Numerical modeling of laser induced phase transitions in silicon

2000 ◽  
Vol 154-155 ◽  
pp. 112-117 ◽  
Author(s):  
A Mittiga ◽  
L Fornarini ◽  
R Carluccio
Keyword(s):  
Numerical Modeling ◽  
Phase Transitions

scholarly journals Insights gained from solvable models into a variety of phase transitions, including emergent assemblies plus isoelectronic series of atomic ions

2014 ◽  
Vol 28 (28) ◽  
pp. 1430019 ◽  
Author(s):  
N. H. March ◽  
G. G. N. Angilella ◽  
R. Pucci
Keyword(s):  
Numerical Modeling ◽  
Phase Transitions ◽  
Neutral Atom ◽  
Rare Earth Metals ◽  
Solvable Models ◽  
Heavy Rare Earth ◽  
Atomic Ions ◽  
Isoelectronic Series ◽  
Different Types ◽  
3D Ising Model

Three solvable models are set out in some detail in reviewing different types of phase transitions. Two of these relate directly to emergent critical phenomena, viz. melting and magnetic transitions in heavy rare-earth metals, and secondly, via the 3d Ising model, to critical behavior in an insulating ferromagnet such as CrBr 3. The final "transition", however, concerns ionization of an electron in an isoelectronic series with N electrons as the atomic number Z is reduced below that of the neutral atom. These solvable models are, throughout, brought into contact either with experiment, or with very precise numerical modeling on real materials.

Numerical Modeling of Non-Equilibrium Phase Transitions in the Isothermal Compositional Hydrocarbon Flow Simulations (Russian)

2019 ◽  
Author(s):  
Kirill Bogachev ◽  
Sergey Zemtsov ◽  
Sergey Milyutin ◽  
Ilya Indrupskiy ◽  
Olga Lobanova
Keyword(s):  
Numerical Modeling ◽  
Phase Transitions ◽  
Equilibrium Phase ◽  
Flow Simulations ◽  
Non Equilibrium

scholarly journals A Modified Method for Modeling of Heterogeneous Hydrodynamics Processes

2020 ◽  
pp. 63-66
Author(s):  
Gennadiy Sandrakov
Keyword(s):  
Fluid Dynamics ◽  
Numerical Modeling ◽  
Phase Transitions ◽  
Conservation Laws ◽  
Differential Forms ◽  
Homogenization Method ◽  
Particle In Cell ◽  
Cell Method ◽  
Modified Method ◽  
Large Particles

A modified method of numerical modeling for heterogeneous fluid dynamics processes with take of phase transitions will be presented. The method is based on the homogenization on cells and approximation of conservation laws for masses, momentums, and energies in integral and differential forms. The combination of Harlow's particle-in-cell method, Belotserkovskii's large particles method and Bakhvalov's homogenization method is used for computing by the modified method simulation for processes with phase transitions.

scholarly journals METHODS OF THE PATTERN FORMATION IN NUMERICAL MODELING OF BIOLOGICAL PROBLEMS

2019 ◽  
Vol 17 (2) ◽  
pp. 217 ◽  
Author(s):  
Alexander E. Filippov ◽  
Stanislav N. Gorb
Keyword(s):  
Numerical Modeling ◽  
Fourier Transform ◽  
Phase Transitions ◽  
Large Scale ◽  
Deposition Technique ◽  
Fractal Structures ◽  
Potential Relief ◽  
Phase Nucleation ◽  
Late Stages ◽  
Stable Structures

Evolution of different systems can be described in terms of their relaxation to the minimums of some effective potential relief. This observation leads us to face us with a question how to generate corresponding potential patterns which describe adequately various physical and biological systems. In this review, we present a number of different ways of generating such potentials demanded by the problems of different kinds. For example, we reproduce such a generation in the framework of a simple theory of phase transitions, automatic blocking of the growing phase nucleation and universal large scale structure. Being frozen at late stages of their evolution they form majority of meta-stable structures which we observe in real world. Counting on above-mentioned universality of naturally-generated fractal structures and their further utilization in numerical simulations of biological problems, we reproduce also formal algorithms of generation of such structures based on random deposition technique and Fourier-transform approaches.

Numerical Modeling of Non-Equilibrium Phase Transitions in the Isothermal Compositional Hydrocarbon Flow Simulations

2019 ◽  
Author(s):  
Kirill Bogachev ◽  
Sergey Zemtsov ◽  
Sergey Milyutin ◽  
Ilya Indrupskiy ◽  
Olga Lobanova
Keyword(s):  
Numerical Modeling ◽  
Phase Transitions ◽  
Equilibrium Phase ◽  
Flow Simulations ◽  
Non Equilibrium

Electron Microscopy of Graphite Intercalation Compounds

1982 ◽  
Vol 40 ◽  
pp. 544-545
Author(s):  
G. Timp ◽  
L. Salamanca-Riba ◽  
L.W. Hobbs ◽  
G. Dresselhaus ◽  
M.S. Dresselhaus
Keyword(s):  
Electron Microscopy ◽  
Phase Transitions ◽  
Domain Wall ◽  
Intercalation Compounds ◽  
Lattice Plane ◽  
Wall Model ◽  
Graphite Intercalation Compounds ◽  
Fundamental Symmetry ◽  
Graphite Intercalation

Electron microscopy can be used to study structures and phase transitions occurring in graphite intercalations compounds. The fundamental symmetry in graphite intercalation compounds is the staging periodicity whereby each intercalate layer is separated by n graphite layers, n denoting the stage index. The currently accepted model for intercalation proposed by Herold and Daumas assumes that the sample contains equal amounts of intercalant between any two graphite layers and staged regions are confined to domains. Specifically, in a stage 2 compound, the Herold-Daumas domain wall model predicts a pleated lattice plane structure.

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