THE CRITICAL REGION OF THE RANDOM-BOND ISING-MODEL

被引：31

作者：

TALAPOV, AL ^{[1
]}

SHCHUR, LN ^{[1
]}

机构：

[1] UNIV BONN,INST PHYS,D-53115 BONN,GERMANY

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1994年 / 6卷 / 40期

关键词：

D O I：

10.1088/0953-8984/6/40/020

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We describe results of the cluster algorithm special purpose processor simulations of the 2D Ising model with impurity bonds. We use large lattices with up to 10(6) spins to define critical temperature regions where both finite-size corrections and corrections to scaling are small. High-accuracy data unambiguously show an increase in the magnetization and magnetic susceptibility effective exponents beta and gamma, caused by impurities. The M- and chi-singularities become sharper, while the specific heat singularity is smoothed.

引用

页码：8295 / 8308

页数：14

共 50 条

[1] THE CRITICAL CURVE FOR THE QUENCHED DILUTE RANDOM-BOND ISING-MODEL
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[3] NUMERICALLY EXACT SOLVABLE RANDOM-BOND ISING-MODEL
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