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Multicritical behavior of weakly disordered systems with two order parameters

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Abstract

We present a field-theoretic description of phase transitions in weakly disordered systems with two coupled order parameters. Using the two-loop approximation and the Padé-Borel summation technique, we carry out a renormalization-group analysis of the scaling functions for three-dimensional systems and identify the fixed points corresponding to stable multicritical behavior. We also study the effect of frozen point impurities on the nature of the phase diagrams.

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Authors and Affiliations

  1. Omsk State University, 644077, Omsk, Russia

    V. V. Prudnikov, P. V. Prudnikov & A. A. Fedorenko

Authors
  1. V. V. Prudnikov
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  2. P. V. Prudnikov
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  3. A. A. Fedorenko
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Zh. Éksp. Teor. Fiz. 116, 611–619 (August 1999)

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Prudnikov, V.V., Prudnikov, P.V. & Fedorenko, A.A. Multicritical behavior of weakly disordered systems with two order parameters. J. Exp. Theor. Phys. 89, 325–330 (1999). https://doi.org/10.1134/1.558987

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  • DOI: https://doi.org/10.1134/1.558987

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