Publication: Critical structure factor in Ising systems
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2002-08-21
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American Physical Society
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Abstract
We perform a large-scale Monte Carlo simulation of the three-dimensional Ising model on simple cubic lattices of size L^(3) with L5128 and 256. We determine the corresponding structure factor (Fourier transform of the two-point function) and compare it with several approximations and with experimental results. We also compute the turbidity as a function of the momentum of the incoming radiation, focusing in particular on the deviations from the Ornstein-Zernike expression of Puglielli and Ford.
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© 2002 The American Physical Society. The work of V.M.M. was supported by European Commission Contract No. HPMF-CT-2000-00450 and by OCYT (Spain), Project No. FPA2001-1813.