Solitons in chiral-spin liquids.
Solitons in chiral-spin liquids.
复制标题
手性自旋液体中的孤子。
DOI：
10.1103/physrevlett.65.1506
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发表时间：
1990
影响因子：
8.6
通讯作者：
Rokhsar
中科院分区：
文献类型：
--
作者：
Rokhsar
我们考虑一类与宇称和时间反转破缺的手征自旋液体相关的紧束缚模型的低激发态，该模型描述了磁阻挫的Mott绝缘体。与聚乙炔的孤立子激发精确类比，存在一个束缚于手性序拓扑破坏的中间带隙态，导致中性的自旋1/2旋量和电荷e的无自旋holon。
We consider the low-lying states of a class of tight-binding models related to the parity- and time-reversal-breaking chiral-spin liquid, which describes a magnetically frustrated Mott insulator. In precise analogy with the soliton excitations of polyacetylene, the presence of a midgap state bound to topological disruptions of the chiral order leads to neutral, spin-1/2 spinors and charge-e, spinless holons.