Chiral spin liquid in a correlated topological insulator

Chiral spin liquid in a correlated topological insulator
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相关拓扑绝缘体中的手性自旋液体

DOI:
10.1103/physrevb.83.205116
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发表时间:
2010-12
期刊:
影响因子:
--
通讯作者:
Shiping Feng
Shiping Feng
中科院分区:
--
文献类型:
--
作者:
Jing He;Su-Peng Kou;Ying Liang;Shiping Feng

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本文采用从旋翼方法研究了蜂窝晶格上具有自旋旋转对称的具有现场相互作用的拓扑Hubbard模型-自旋Haldane模型,发现在这种中间耦合区域的相关电子系统中存在手性自旋液体。考虑到激发的任意性质,手性自旋液体可能是拓扑Hubbard模型的基态。低能物理基本上是由它的陈-西蒙斯规范理论决定的。
In this paper, we investigate the topological Hubbard model - the spinful Haldane model with on-site interaction on honeycomb lattice with spin rotation symmetry by using slave-rotor approach and find that chiral spin liquid exists in such a correlated electron system of the intermediate coupling region. By considering the anyon nature of excitations, chiral spin liquid may be the ground state of the topological Hubbard model. The low energy physics is basically determined by its Chern-Simons gauge theory.
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发表时间: 1987
期刊: --
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