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Temperature Dependence of Spatial and Dynamic Heterogeneities above the Ising Spin Glass Transition

  • S. C. Glotzer (a1), P. H. Poole (a2), A. Coniglio (a3) and N. Jan (a4)


The temperature dependence of the microstructure and local dynamics in the paramagnetic phase of the d = 2 and d = 3 ± J Ising spin glass model is examined by comparing the equilibrium distributions of local flip-rates and local energies calculated in large-scale Monte Carlo simulations. The emergence in this model of fast processes as the glass transition is approached corresponds with recent experimental results.



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[8] For comparison, note that for a ferromagnetic Ising model εi would approach the same value for all sites. The same is true for νi.
[9] If P(x) describes the distribution of a set of N values {x i}, then the standard deviation σ of P{x} is given by where 〈x〉 is the average value of x. The skewness γ of P(x) is given by .
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[13] Sokolov, A., et al., these proceedings, and references therein.


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