中国物理B ›› 2024, Vol. 33 ›› Issue (1): 17501-17501.doi: 10.1088/1674-1056/acf03c

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Tunable dispersion relations manipulated by strain in skyrmion-based magnonic crystals

Zhao-Nian Jin(金兆年)1, Xuan-Lin He(何宣霖)2, Chao Yu(于超)2, Henan Fang(方贺男)2, Lin Chen(陈琳)2, and Zhi-Kuo Tao(陶志阔)2,†   

  1. 1 Bell Honors School, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    2 College of Electronic and Optical Engineering & College of Flexible Electronics, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • 收稿日期:2023-06-09 修回日期:2023-08-06 接受日期:2023-08-15 出版日期:2023-12-13 发布日期:2023-12-22
  • 通讯作者: Zhi-Kuo Tao E-mail:zktao@njupt.edu.cn

Tunable dispersion relations manipulated by strain in skyrmion-based magnonic crystals

Zhao-Nian Jin(金兆年)1, Xuan-Lin He(何宣霖)2, Chao Yu(于超)2, Henan Fang(方贺男)2, Lin Chen(陈琳)2, and Zhi-Kuo Tao(陶志阔)2,†   

  1. 1 Bell Honors School, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    2 College of Electronic and Optical Engineering & College of Flexible Electronics, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2023-06-09 Revised:2023-08-06 Accepted:2023-08-15 Online:2023-12-13 Published:2023-12-22
  • Contact: Zhi-Kuo Tao E-mail:zktao@njupt.edu.cn

摘要: We theoretically investigate the propagation characteristics of spin waves in skyrmion-based magnonic crystals. It is found that the dispersion relation can be manipulated by strains through magneto-elastic coupling. Especially, the allowed bands and forbidden bands in dispersion relations shift to higher frequency with strain changing from compressive to tensile, while shifting to lower frequency with strain changing from tensile to compressive. We also confirm that the spin wave with specific frequency can pass the magnonic crystal or be blocked by tuning the strains. The result provides an advanced platform for studying the tunable skyrmion-based spin wave devices.

关键词: skyrmion, magnonic crystal, spin wave, dispersion relation

Abstract: We theoretically investigate the propagation characteristics of spin waves in skyrmion-based magnonic crystals. It is found that the dispersion relation can be manipulated by strains through magneto-elastic coupling. Especially, the allowed bands and forbidden bands in dispersion relations shift to higher frequency with strain changing from compressive to tensile, while shifting to lower frequency with strain changing from tensile to compressive. We also confirm that the spin wave with specific frequency can pass the magnonic crystal or be blocked by tuning the strains. The result provides an advanced platform for studying the tunable skyrmion-based spin wave devices.

Key words: skyrmion, magnonic crystal, spin wave, dispersion relation

中图分类号:  (Spin waves)

  • 75.30.Ds
75.80.+q (Magnetomechanical effects, magnetostriction) 85.70.Ay (Magnetic device characterization, design, and modeling) 12.39.Dc (Skyrmions)