Possibility of a chiral phase transition in 2D solid 3He

被引：0

作者：

Momoi, T ^{[1
]}

Kubo, K ^{[1
]}

Niki, K ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Phys, Ibaraki, Osaka 305, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1998年 / 177卷

关键词：

magnetic ordering; phase transitions; two dimensional systems; antiferromagnets; frustrated systems;

D O I：

10.1016/S0304-8853(97)00438-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study a spin system with both two-and four-spin exchange interactions on the triangular lattice, which is a possible model for the nuclear magnetism of solid He-3 layers. We find that a novel phase with scalar chiral order appears if the four-spin interaction is dominant. Ground-state properties are studied using the spin-wave approximation. A phase transition concerning the scalar chirality occurs at a finite temperature, since the chirality is an Ising-type variable. Critical phenomena of this transition are studied by Monte Carlo simulations in the classical limit. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：167 / 168

页数：2

共 10 条

[1] SPECIFIC-HEAT AND CURIE-TEMPERATURE EVALUATION ON TRIANGULAR LATTICE - EXCHANGE FREQUENCIES FOR HE-3 ADSORBED ON GRAFOIL, EVALUATED BY PATH INTEGRAL TECHNIQUES [J].