New universality class in three dimensions? The antiferromagnetic RP(2) model

被引：74

作者：

Ballesteros, HG

Fernandez, LA

MartinMayor, V

Sudupe, AM

机构：

[1] Depto. de Fis. Teórica I, Facultad de CC. Físicas, Universidad Complutense de Madrid

来源：

PHYSICS LETTERS B | 1996年 / 378卷 / 1-4期

关键词：

RP(2); non-linear sigma model; antiferromagnetism; critical exponents; phase transitions; universality; finite size scaling;

D O I：

10.1016/0370-2693(96)00358-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of a Monte Carlo simulation of the RP(2) model in three dimensions with negative coupling. We observe a second order phase transition between the disordered phase and an antiferromagnetic, unfrustrated, ordered one. We measure, with a finite size scaling analysis, the thermal exponent, obtaining v = 0.784(8). We have found two magnetic-type relevant operators whose related eta exponents are 0.038(2) and 1.338(8) respectively.

引用

页码：207 / 212

页数：6

共 18 条

[1] Monte Carlo study of O(3) antiferromagnetic models in three dimensions [J].