Numerical Studies of the Compressible Ising Spin Glass

Abstract

We study a two-dimensional compressible Ising spin glass at constant volume. The spin interactions are coupled to the distance between neighboring particles in the Edwards-Anderson model with +/- J interactions. We find that the energy of a given spin configuration is shifted from its incompressible value, E_0, by an amount quadratic in E_0 and proportional to the coupling strength. We then construct a simple model expressed only in terms of spin variables that predicts the existence of a critical value of the coupling above which the spin-glass transition disappears.

arXiv commentREVTeX, 4 pages, 4 figures. Submitted to Phys. Rev. Lett

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Cited by in corpus (4)

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• Compressible Sherrington-Kirkpatrick spin-glass model
• Effect of compression in molecular spin-crossover chains
• The Compressible Ising Spin Glass: Simulation Results