Critical Behavior of Ising Model with Long Range Correlated Quenched Impurities  

作　　者：CHENYuan 

机构地区：DepartmentofPhysics,GuangzhouUniversity,Guangzhou510405,China

出　　处：《Communications in Theoretical Physics》2004年第1X期126-130,共5页理论物理通讯（英文版）

基　　金：国家自然科学基金

摘　　要：The theoretic renormalization-group approach is applied to the study of the critical behavior of the ddimensional Ising 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 the expansion in ε = 4 - d. In d ＜ 4, the dynamic exponent z .is calculated up to the second order in ρ with ρ = O(ε1/2). The shape function is obtained in one-loop calculation.When d = 4, the logarithmic corrections to the critical behavior are found. The finite size effect on the order parameter relaxation rate is also studied.

关 键 词：临界行为 淬火杂质 对数修正 ISING模型 归一化群近似 

分 类 号：O482.2[理学—固体物理]