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Finite-size scaling corrections in two-dimensional Ising and Potts ferromagnets

S L A de Queiroz
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Abstract

Finite-size corrections to scaling of critical correlation lengths and free energies of Ising and three-state Potts ferromagnets are analysed by numerical methods, on strips of width $N$ sites of square, triangular and honeycomb lattices. Strong evidence is given that the amplitudes of the ``analytical'' correction terms, $N^{-2}$, are identically zero for triangular-- and honeycomb Ising systems. For Potts spins, our results are broadly consistent with this lattice-dependent pattern of cancellations, though for correlation lengths non-vanishing (albeit rather small) amplitudes cannot be entirely ruled out.

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S L A de Queiroz. 1999-12-06. Finite-size scaling corrections in two-dimensional Ising and Potts ferromagnets. https://doi.org/10.1088/0305-4470%2F33%2F4%2F306

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