论文标题
蜂窝状磁铁中的拓扑相变和非平凡的热室特征
Topological phase transition and nontrivial thermal Hall signatures in honeycomb lattice magnets
论文作者
论文摘要
我们从蜂窝晶格磁铁中研究了长期磁性和分数旋子之间的相互作用，以及在外部磁场下的Zeeman耦合，研究了Spinon带拓扑和工程。 Néel顺序和磁场的协同作用可以重建Spinon频段，并驱动从长期阶的共存阶段和具有半拓扑顺序的手性旋转液体到常规磁性顺序的拓扑相变。我们的预测可以立即通过蜂窝晶格磁铁中的热厅传输测量进行测试，这些测量值与量子临界点接近。我们的理论还应该阐明具有新兴Majorana fermion带的蜂窝基塔伊夫材料的临界行为。我们建议与$ _3 $ cu $ _2 $ vo $ _9 $的Spin-1/2蜂窝旋转液体候选材料有可能的相关性。
We investigate spinon band topology and engineering from the interplay between long-ranged magnetic order and fractionalized spinons, as well as Zeeman coupling under external magnetic fields, in honeycomb lattice magnets. The synergism of Néel order and magnetic fields could reconstruct the spinon bands and drive a topological phase transition from the coexisting phase of long-ranged order and chiral spin liquid with semion topological order to the conventional magnetic order. Our prediction can be immediately tested through thermal Hall transport measurements among the honeycomb lattice magnets that are tuned to be proximate to the quantum critical point. Our theory should also shed light on the critical behavior of honeycomb Kitaev materials with emergent Majorana fermion bands. We suggest a possible relevance to the spin-1/2 honeycomb spin liquid candidate material In$_3$Cu$_2$VO$_9$.
