Monte Carlo study of O(3) antiferromagnetic models in three dimensions

被引：41

作者：

Alonso, JL ^{[1
]}

Tarancon, A ^{[1
]}

Ballesteros, HG ^{[1
]}

Fernandez, LA ^{[1
]}

MartinMayor, V ^{[1
]}

Sudupe, AM ^{[1
]}

机构：

[1] UNIV COMPLUTENSE MADRID,FAC CIENCIAS FIS,DEPT FIS TEOR 1,E-28040 MADRID,SPAIN

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.53.2537

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study three antiferromagnetic formulations of the O(3) spin model in three dimensions by means of Monte Carlo simulations: (1) a two parameter sigma model with nearest- and next-nearest neighbors couplings in a cubic lattice; (2) a face-centered-cubic lattice with nearest-neighbor interaction; (3) a cubic lattice with a set of fully frustrating couplings. We discuss in all cases the vacua properties and analyze the phase transitions. Using finite-size scaling analysis we conclude that all phase transitions found are of first order.

引用

页码：2537 / 2545

页数：9

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