Global symmetry breaking in the nonconserved order parameter system during phase ordering |
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Authors: | Email author" target="_blank">M?Fia?kowski Email author R?Ho?yst |
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Institution: | (1) Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland;(2) Cardinal S. Wyszy ski University WMP-SN , Dewajtis 5, 01-815 Warsaw, Poland |
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Abstract: | We study global symmetry breaking in the 2D system of scalar nonconserved order parameter following a quench to zero temperature. We show that the instant of time when the symmetry is broken and the final morphology is chosen corresponds to the saturation of the order parameter inside the domains. There are three possible final morphologies: the positive and negative order parameter final morphology, and the state of the coexisting positive and negative order parameter subsystems with a flat interface between them. We find also that each type of the final morphology constitutes about 1/3 of all cases, what agrees with the results obtained recently by Spirin et al. Phys. Rev. E 65, 016119 (2001)]. Our results are pertinent for the two dimensional systems, but we suspect that there is also a way to apply similar arguments for the three dimensional ones. |
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Keywords: | 64 60 Cn Order-disorder transformations statistical mechanics of model systems 68 55 Jk Structure and morphology thickness crystalline orientation and texture 75 40 Gb Dynamic properties (dynamic susceptibility spin waves spin diffusion dynamic scaling etc ) |
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