Glotzer, S.
, Jan, N.
, Lookman, T.
, MacIsaac, A.
and Poole, P.
(2008),
Dynamical Heterogeneity in the Ising Spin Glass, Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) (Accessed May 11, 2026)
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Dynamical Heterogeneity in the Ising Spin Glass
Published
Author(s)
, N Jan, T Lookman, A B. MacIsaac, P H. Poole
Abstract
We investigate the relationship between bulk and local relaxation in the Ising spin glass (in 2 and 3 dimensions) for temperatures above but approaching the glass transition temperature, using Monte Carlo computer simulations. We find that the stretched exponential form of the bulk spin autocorrelation function results from a spatial average over a broad range of behavior--from strongly non-exponential to nearly exponential--for the local autocorrelation functions. The spatial correlation of single-site relaxation times obtained from these functions provides a length scale for dynamical heterogeneity which grows with decreasing temperature.Citation
Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)
Pub Type
Journals
Keywords
disordered materials, frustration, glasses, heteroeneous dynamics, spin glass
Citation
Issues
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Created October 16, 2008