Phases of frustrated quantum antiferromagnets on the square and triangular lattices
Phases of frustrated quantum antiferromagnets on the square and triangular lattices
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DOI：
10.1103/physrevb.101.214404
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发表时间：
2020-03
影响因子：
3.7
通讯作者：
Yue Yu;S. Kivelson
中科院分区：
文献类型：
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作者：
Yue Yu;S. Kivelson
我们分析了正方形和三角形晶格上自旋S量子反铁磁体的零温相图，其中存在竞争的最近和次最近交换相互作用以及双二次耦合。我们从大S极限出发来处理这个问题。我们的主要重点是确定在何种程度上的任何量子无序相的存在和性质可以推断出这种方法。
We analyze the zero temperature phase diagrams of the spin S quantum antiferromagnet on square and triangular lattices with competing nearest and next-nearest exchange interactions as well as biquadratic couplings. We approach the problem from the large S limit. Our primary focus is on determining the extent to which the existence and character of any quantum disordered phases can be inferred from this approach.