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Dynamics of Ordering in Alloys with Modulated Phases | Bulbul Chakraborty
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15 Oct 1993 | Subject: | cond-mat | Abstract: | This paper presents a theoretical model for studying the dynamics of ordering in alloys which exhibit modulated phases. The model is different from the standard time-dependent Ginzburg-Landau description of the evolution of a non-conserved order parameter and resembles the Swift-Hohenberg model. The early-stage growth kinetics is analyzed and compared to the Cahn-Hilliard theory of continuous ordering. The effects of non-linearities on the growth kinetics are discussed qualitatively and it is shown that the presence of an underlying elastic lattice introduces qualitatively new effects. A lattice Hamiltonian capable of describing these effects and suitable for carrying out simulations of the growth kinetics is also constructed. | Source: | arXiv, cond-mat/9310039 | Other source: | [GID 323557] pmid10009639 | Services: | Forum | Review | PDF | Favorites |
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