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Ordered phase in the two-dimensional randomly coupled ferromagnet | | A.K. Hartmann
; I.A. Campbell
; | | Date: |
3 Mar 2000 | | Journal: | Phys. Rev. B 63, 094423 (2001) | | Subject: | Disordered Systems and Neural Networks | cond-mat.dis-nn | | Abstract: | True ground states are evaluated for a 2d Ising model with random near neighbor interactions and ferromagnetic second neighbor interactions (the Randomly Coupled Ferromagnet). The spin glass stiffness exponent is positive when the absolute value of the random interaction is weaker than the ferromagnetic interaction. This result demonstrates that in this parameter domain the spin glass like ordering temperature is non-zero for these systems, in strong contrast to the 2d Edwards-Anderson spin glass. | | Source: | arXiv, cond-mat/0003042 | | Services: | Forum | Review | PDF | Favorites | |
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