Phys. Rev. Lett. 76, 1352–1355 (1996)High-Precision Evaluation of the Static Exponents of the Classical Heisenberg FerromagnetReceived 8 September 1995; published in the issue dated 19 February 1996 A high-precision, multimethod Monte Carlo study of the static exponents of the O(3) classical Heisenberg ferromagnet yields an estimate for the critical temperature of Tc≈1.4427±0.0002 from which it is conjectured that Tc = 1/ln(2). It is shown from finite-size scaling of the data that the specific heat is singular for this model, with α = 0.0750±0.002, ν = 0.642±0.002, β = 0.328±0.001, and γ = 1.270±0.001. This result is confirmed by comparing the universality scaling of the full order parameter curve for three possible values of ν. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.76.1352
DOI:
10.1103/PhysRevLett.76.1352
PACS:
75.10.Jm, 05.30.-d
See AlsoComment: Christian Holm and Wolfhard Janke, Critical Exponents of the Classical Heisenberg Ferromagnet, Phys. Rev. Lett. 78, 2265 (1997). Reply: Robert G. Brown and Mikael Ciftan, Brown and Ciftan Reply:, Phys. Rev. Lett. 78, 2266 (1997). |
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