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CVM modeling of the square Ising lattice with one next-nearest-neighbor interaction

Journal Article · · J. Stat. Phys.; (United States)
DOI:https://doi.org/10.1007/BF01009962· OSTI ID:5613963
As an analysis of the development of first-order behavior in two-dimensional Ising lattices, the square lattice with antiferromagnetic nearest-neighbor interactions and a ferromagnetic next-nearest-neighbor interaction in the (11) direction has been modeled. The phase diagram was calculated for a range of interaction parameters and imposed fields; the calculations were performed using the cluster variation method (CVM). Analysis of the calculations suggests that no first-order behavior is developed in this system, so that higher dimensionality or connectivities are required before such behavior is developed.
Research Organization:
Univ. of California, Los Angeles
OSTI ID:
5613963
Journal Information:
J. Stat. Phys.; (United States), Journal Name: J. Stat. Phys.; (United States) Vol. 49:1-2; ISSN JSTPB
Country of Publication:
United States
Language:
English

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