Phase Separation in a Compressible 2D Ising Model

Autor:	S. J. Mitchell, Landau Dp
Rok vydání:	2006
Předmět:	Physics Magnetization Current (mathematics) Condensed matter physics Domain (ring theory) Monte Carlo method Compressibility General Physics and Astronomy Square-lattice Ising model Ising model Statistical physics Measure (mathematics)
Zdroj:	Physical Review Letters. 97
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.97.025701
Popis:	We perform a high precision Monte Carlo study of asymptotic domain growth in a compressible two-dimensional spin-exchange Ising model with continuous particle positions and zero total magnetization, and we investigate the effects of compressibility and lattice mismatch on the late-time domain growth law, R(t) = A + Bt(n). For mismatched systems, we measure significant deviations from the theoretically expected n = 1/3 late-time growth (n = 0.224 +/- 0.004), and for a compressible model with no mismatch, we measure only a slight deviation from n = 1/3. These results strongly suggest that the current understanding of the classes of domain growth is incomplete.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6759d1a28e9d60a0508a638a30cc6f0e https://doi.org/10.1103/physrevlett.97.025701 Zobrazit plný text záznamu