物理
弗洛奎特理论
铁磁性
凝聚态物理
拓扑(电路)
相(物质)
蜂巢
空中骑兵
拓扑序
马格农
相变
量子力学
非线性系统
材料科学
量子
组合数学
复合材料
数学
作者
Zheng Tang,Hehua Zhu,Haifeng Shi,Bing Tang
标识
DOI:10.1016/j.physleta.2023.129275
摘要
We theoretically study topological properties of Floquet magnons in a laser-irradiated Kitaev-Heisenberg honeycomb ferromagnet with the Dzyaloshinskii-Moriya interaction by making use of the Floquet-Bloch theory. It is found that the Kitaev-Heisenberg honeycomb ferromagnet can reveal two topological phases with different Chern numbers when it is irradiated by the circular-polarized light. We find that the topological phase of the system can be switched from one topological phase to another one by adjusting the light intensity. The intrinsic Dzyaloshinskii-Moriya interaction plays a crucial role in the emergence of photoinduced topological phase transitions. It is shown that sign reversal of the thermal Hall conductivity is an important indicator on photoinduced topological phase transitions in the Kitaev-Heisenberg honeycomb ferromagnet.
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