Crossovers in the Two Dimensional Ising Spin Glass with ferromagnetic next-nearest-neighbor interactions

Details Crossovers in the Two Dimensional Ising Spin Glass with ferromagnetic next-nearest-neighbor interactions Crossovers in the Two Dimensional Ising Spin Glass with ferromagnetic next-nearest-neighbor interactions

1998-01-21

arxiv.org/abs/cond-mat/9801215v2

J. Phys. A: Math. and Gen. 31 (1998) 4657-4668

Physics

Condensed Matter

Statistical Mechanics

19 pages with 9 postscript figures also available at http://chimera.roma1.infn.it/index_papers_complex.html. Some changes in

Scientific paper

10.1088/0305-4470/31/20/007

By means of extensive computer simulations we analyze in detail the two dimensional $\pm J$ Ising spin glass with ferromagnetic next-nearest-neighbor interactions. We found a crossover from ferromagnetic to ``spin glass'' like order both from numerical simulations and analytical arguments. We also present evidences of a second crossover from the ``spin glass'' behavior to a paramagnetic phase for the largest volume studied.

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