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Photoinduced Floquet topological magnons in a ferromagnetic checkerboard lattice

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成果类型:
期刊论文
作者:
Zhang, Zhiqin;Feng, Wenhui;Yao, Yingbo;Tang, Bing
通讯作者:
Bing Tang
作者机构:
[Feng, Wenhui; Tang, Bing; Zhang, Zhiqin] Jishou Univ, Dept Phys, Jishou 416000, Peoples R China.
[Tang, Bing] Jishou Univ, Collaborat Innovat Ctr Manganese Zinc Vanadium In, Jishou 416000, Peoples R China.
[Yao, Yingbo] Hunan City Univ, Coll Informat & Elect Engn, Yiyang 413000, Peoples R China.
通讯机构:
[Bing Tang] D
Department of Physics, Jishou University, Jishou 416000, China<&wdkj&>The Collaborative Innovation Center of Manganese-Zinc-Vanadium Industrial Technology, Jishou University, Jishou 416000, China
语种:
英文
关键词:
Floquet topological magnons;Topological phase transitions;The Floquet-Bloch theory;Irradiated checkerboard ferromagnets
期刊:
Physics Letters A
ISSN:
0375-9601
年:
2021
卷:
414
页码:
127630
基金类别:
National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [12064011]; Scientific Research Foundation of Hunan Provincial Education DepartmentHunan Provincial Education Department [18C0844]; Natural Science Fund Project of Hunan Province [2020JJ4498]; Graduate Research Innovation Foundation of Jishou University [JGY202029]
机构署名:
本校为其他机构
院系归属:
信息与电子工程学院
摘要:
This theoretical work is devoted to investigating laser-irradiated Floquet topological magnon insulators on a two-dimensional checkerboard ferromagnet and corresponding topological phase transitions. It is shown that the checkerboard Floquet topological magnon insulator is able to be transformed from a topological magnon insulator into another one possessing various Berry curvatures and Chern numbers by changing the light intensity. Especially, we also show that both Tamm-like and topologically protected Floquet magnon edge states can exist when a nontrivial gap opens. In addition, our results...

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