Abstract
The critical index valuesγ= 7/4 for the susceptibility andδ=15 for the critical isotherm are derived rigorously for the rectangular Ising ferromagnet with nearest neighbor interactions. The critical indices associated with the Fisher moment definition of the correlation length are obtained asT→T c+. The index of the fluctuation sum definition of critical correlations is obtained.
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Partially supported by grant PHY 76 17191.
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Abraham, D.B. Susceptibility of the rectangular Ising ferromagnet. J Stat Phys 19, 349–358 (1978). https://doi.org/10.1007/BF01011754
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DOI: https://doi.org/10.1007/BF01011754