Zero- and low-temperature behavior of the two-dimensional ± Jising spin glass

Creighton K. Thomas, David A. Huse, A. Alan Middleton

Research output: Contribution to journalArticle

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Abstract

Scaling arguments and precise simulations are used to study the square lattice ±J Ising spin glass, a prototypical model for glassy systems. Droplet theory explains, and our numerical results show, entropically stabilized long-range spin-glass order at zero temperature, which resembles the energetic stabilization of long-range order in higher-dimensional models at finite temperature. At low temperature, a temperature-dependent crossover length scale is used to predict the power-law dependence on temperature of the heat capacity and clarify the importance of disorder distributions.

Original languageEnglish (US)
Article number047203
JournalPhysical review letters
Volume107
Issue number4
DOIs
StatePublished - Jul 20 2011

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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