RANDOMNESS-INDUCED 2ND-ORDER TRANSITION IN THE 2-DIMENSIONAL 8-STATE POTTS-MODEL - A MONTE-CARLO STUDY

被引：102

作者：

CHEN, S ^{[1
]}

FERRENBERG, AM ^{[1
]}

LANDAU, DP ^{[1
]}

机构：

[1] UNIV GEORGIA,DEPT PHYS & ASTRON,ATHENS,GA 30602

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.69.1213

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the effect of quenched, bond randomness on the nature of the phase transition in the two-dimensional eight-state Potts model. Through extensive Monte Carlo simulations, we confirm that the phase transition changes from first order to second order. A finite-size-scaling analysis of several thermodynamic quantities strongly suggests that the critical exponents fall into the universality class of the two-dimensional Ising model.

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页码：1213 / 1215

页数：3

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