Lifshitz-Slyozov kinetics of a nonconserved system that separates into phases of different density
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Lifshitz-Slyozov kinetics of a nonconserved system that separates into phases of different density. / Mouritsen, Ole G.; Shah, Peter Jivan; Andersen, Jørgen Vitting.
I: Physical Review B (Condensed Matter and Materials Physics), Bind 42, Nr. 7, 1990, s. 4506-4513.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Lifshitz-Slyozov kinetics of a nonconserved system that separates into phases of different density
AU - Mouritsen, Ole G.
AU - Shah, Peter Jivan
AU - Andersen, Jørgen Vitting
PY - 1990
Y1 - 1990
N2 - Computer-simulation techniques are applied to analyze the late-stage ordering kinetics of a two-dimensional annealed dilute Ising model quenched into regions of its phase diagram that involve phase separation of phases with different densities. The order parameter of the model is a nonconserved quantity, whereas the global density is conserved. The ordered phases of the model are fourfold degenerate (2×1) and (2×2) superstructures on a square lattice. The equilibrium phase diagram involves a region of coexisting (2×1) and (2×2) phases and a region where the (2×2) phase coexists together with a gas phase. The results of the study show that the phase-separation kinetics in all cases are consistent with the Lifshitz-Slyozov growth law, R»(t)t1/3, where R»(t) is the characteristic linear domain size. These results are in agreement with recent low-energy electron-diffraction studies of the phase-separation kinetics in O/W(110) systems at high coverage.
AB - Computer-simulation techniques are applied to analyze the late-stage ordering kinetics of a two-dimensional annealed dilute Ising model quenched into regions of its phase diagram that involve phase separation of phases with different densities. The order parameter of the model is a nonconserved quantity, whereas the global density is conserved. The ordered phases of the model are fourfold degenerate (2×1) and (2×2) superstructures on a square lattice. The equilibrium phase diagram involves a region of coexisting (2×1) and (2×2) phases and a region where the (2×2) phase coexists together with a gas phase. The results of the study show that the phase-separation kinetics in all cases are consistent with the Lifshitz-Slyozov growth law, R»(t)t1/3, where R»(t) is the characteristic linear domain size. These results are in agreement with recent low-energy electron-diffraction studies of the phase-separation kinetics in O/W(110) systems at high coverage.
U2 - 10.1103/PhysRevB.42.4506
DO - 10.1103/PhysRevB.42.4506
M3 - Journal article
AN - SCOPUS:0000989732
VL - 42
SP - 4506
EP - 4513
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 7
ER -
ID: 238387147