论文标题
富含翻译的$ z_2 $旋转液体和拓扑视觉带:可能应用于$α$ -rucl $ _3 $
Translation-enriched $Z_2$ spin liquids and topological vison bands: Possible application to $α$-RuCl$_3$
论文作者
论文摘要
受到磁场诱发阶段的启发,旋转轨道耦合$ 2D $ mott绝缘子$α$ -RUCL $ _3 $,我们研究了由lattice Translation Symmetry富含的$ Z_2 $ Z_2 $ Qupaped $ Z_2 $ Z_2 $ Quantum Spin Liquid(QSL)的一般方面。我们表明,有$ 12 $不同的此类阶段具有不同的翻译对称性实现。在其中一些阶段中,该QSL的Vison激发可能形成拓扑结构。我们探讨了推定的$ Z_2 $ QSL的现象学描述,作为中级磁场的候选基态状态,价格为$α$ -rucl $ _3 $。该状态在中子散射中具有广泛的连续光谱,在零温度下为零的“玻色孔”热厅信号,并且与Zigzag磁有序状态的自然连接,所有这些都在$α$ -RUCL $ _3 $中看到。从一般情况下,也将在该状态的布里渊区的多个点上看到连续散射。
Inspired by experiments on the magnetic field induced phases of the spin-orbit coupled $2d$ Mott insulator $α$-RuCl$_3$, we study some general aspects of gapped $Z_2$ Quantum Spin Liquids (QSL) enriched by lattice translation symmetry. We show that there are $12$ distinct such phases with different implementations of translation symmetry. In some of these phases the vison excitations of this QSL may form topological Chern bands. We explore a phenomenological description of a putative $Z_2$ QSL as a candidate ground state at intermediate magnetic fields in $α$-RuCl$_3$. This state has broad continuum spectra in neutron scattering, a "bosonic" thermal Hall signal that goes to zero at zero temperature, and a natural connection with a zigzag magnetic ordered state, all of which are also seen in $α$-RuCl$_3$. On general grounds continuum scattering will also be seen at multiple points in the Brillouin zone in this state.