Das J, Kundu S, Kumar A, Tripathi V
Department of Theoretical Physics, Tata Institute of Fundamental Research, Mumbai, India.
Department of Physics, University of Florida, Gainesville, FL 32611, United States of America.
J Phys Condens Matter. 2024 Aug 6;36(44). doi: 10.1088/1361-648X/ad6827.
The honeycomb Kitaev model describes aspin liquid with topological order and fractionalized excitations consisting of gapped-fluxes and free Majorana fermions. Competing interactions, even when not very strong, are known to destabilize the Kitaev spin liquid. Magnetic fields are a convenient parameter for tuning between different phases of the Kitaev systems, and have even been investigated for potentially counteracting the effects of other destabilizing interactions leading to a revival of the topological phase. Here we review the progress in understanding the effects of magnetic fields on some of the perturbed Kitaev systems, particularly on fractionalization and topological order.
蜂窝状基泰耶夫模型描述了一种具有拓扑序和分数化激发的自旋液体，其分数化激发由能隙磁通和自由马约拉纳费米子组成。已知竞争相互作用即使不太强也会破坏基泰耶夫自旋液体的稳定性。磁场是调节基泰耶夫系统不同相的一个方便参数，甚至有人研究过磁场是否有可能抵消其他破坏稳定性的相互作用的影响，从而使拓扑相得以恢复。在这里，我们回顾了在理解磁场对一些受扰基泰耶夫系统的影响方面所取得的进展，特别是对分数化和拓扑序的影响。
