First-order Néel-valence-bond-solid transition in S=3/2 antiferromagnets

被引：0

作者：

Zhang, Fan ^{[1
]}

Guo, Wenan ^{[1
,2
]}

Kaul, Ribhu K. ^{[3
]}

机构：

[1] Beijing Normal Univ, Sch Phys & Astron, Beijing 100875, Peoples R China

[2] Beijing Normal Univ, Key Lab Multiscale Spin Phys, Minist Educ, Beijing 100875, Peoples R China

[3] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

来源：

PHYSICAL REVIEW B | 2024年 / 110卷 / 09期

基金：

中国国家自然科学基金;

关键词：

SPIN; MODEL; GAP;

D O I：

10.1103/PhysRevB.110.094416

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the transition between N & eacute;el and columnar valence-bond solid ordering in two-dimensional S = 3/2 square lattice quantum antiferromagnets with SO(3) symmetry. According to the deconfined criticality scenario, this transition can be direct and continuous like the well-studied S = 1/2 case. To study the global phase diagram, we work with four multi-spin couplings with full rotational symmetry, that are free of the sign-problem of quantum Monte Carlo. Exploring the phase diagram with quantum Monte Carlo simulations, we find that the phase transition between N & eacute;el and valence-bond solid is strongly first-order in the parts of the phase diagram that we have accessed.

引用

页数：9

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