Classical Ground State Spin Ordering of the Antiferromagnetic J1-J2 Model

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2019,（6）
• 页码范围: 75-78
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/36/6/067501

摘要

The classical frustrated antiferromagnetic J1-J2 model is considered in a description of the classical spin wave for a vector spin system.Its ground state (GS) spin ordering is analyzed by minimizing its energy.Our analytical derivations show that all the spins in the GS phase must lie in planes that are parallel to each other.When applying the derived formulations to concrete lattices such as the square and simple cubic lattices,we find that in the large J2 region,a large continuous GS degeneracy concluded by a qualitative analysis is lifted,and collinear striped ordering is selected as the GS phase.