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Kinetics of slow domain growth: The n=1/4 universality class Lindgård, Per-Anker Castán i Vidal, Maria Teresa Física de l'estat sòlid Mecànica estadística Solid state physics Statistical mechanics The domain growth after a quench to very low, finite temperatures is analyzed by scaling theory and Monte Carlo simulation. The growth exponent for the excess energy ΔE(t)∼ t − n is found to be n∼(1/4. The scaling theory gives exactly n=(1/4 for cases of hierarchical movement of domain walls. This explains the existence of a slow growth universality class. It is shown to be a singular Allen-Cahn class, to which belongs systems with domain walls of both exactly zero and finite curvature. The model studied has continuous variables, nonconserved order parameter, and has two kinds of domain walls: sharp, straight, stacking faults and broad, curved, solitonlike walls. 2009-10-21T09:18:11Z 2009-10-21T09:18:11Z 1990 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 0163-1829 https://hdl.handle.net/2445/9748 35440 eng Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.41.4659 Physical Review B, 1990, vol. 41, núm. 7, p. 4659-4662. http://dx.doi.org/10.1103/PhysRevB.41.4659 (c) The American Physical Society, 1990 info:eu-repo/semantics/openAccess 4 p. application/pdf The American Physical Society Articles publicats en revistes (Física Quàntica i Astrofísica)