Condensed Matter Physics, 2010, vol. 13, No. 2, p. 23601:1-14

Title: On the universality class of a magnetic liquid in an external field
  R. Folk (Institute for Theoretical Physics, Johannes Kepler University, Altenberger Str. 69, A-4040 Linz, Austria) ,
  G. Moser (Department for Material Research and Physics, Paris Lodron University Salzburg, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria)

Time scale ratios play an important role in critical dynamics. Their fixed point values govern the dynamical scaling behavior of the relevant fields and their dynamic correlation functions as well as the hydrodynamic transport coefficients. As an example for a system with several time scale ratios we consider a magnetic liquid near the gas-liquid transition.

Key words: phase transition, critical dynamics
PACS: 64.60.Ht, 05.70.Jk, 75.50.Mm, 64.70.Fx

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