Critical Behavior of Ising Model with Long Range Correlated QuenchedImpurities |
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Authors: | CHEN Yuan |
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Affiliation: | Department of Physics, Guangzhou University, Guangzhou 510405, China |
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Abstract: | The theoretic renormalization-group approach is applied to the study ofthe critical behavior of the d-dimensionalIsing model with long-range correlated quenched impurities,which has a power-like correlations r-(d-ρ).The asymptotic scaling law is studied in the framework of theexpansion in ε=4-d. In d<4, the dynamic exponent z is calculated up to the second orderin ρ with ρ=O(ε1/2). The shape function is obtained in one-loop calculation. When d=4, the logarithmic corrections to the critical behaviorare found. The finite size effect on the order parameterrelaxation rate is also studied. |
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Keywords: | Ising model critical behavior quenched impurities |
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