中国物理B ›› 2025, Vol. 34 ›› Issue (10): 107503-107503.doi: 10.1088/1674-1056/addaa6

所属专题： SPECIAL TOPIC — Advanced magnonics

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Ballistic magnon circulators with magnetic skyrmions

Haichuan Zhang(张海川)1,2, Hongbin Wu(武宏斌)1,2, and Jin Lan(兰金)1,2,†   

  1. 1 Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University, Tianjin 300072, China;
    2 Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Tianjin University, Tianjin 300354, China
  • 收稿日期:2025-04-16 修回日期:2025-05-14 接受日期:2025-05-20 发布日期:2025-10-24
  • 通讯作者: Jin Lan E-mail:lanjin@tju.edu.cn
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (Grant Nos. 12374117 and 11904260) and the Natural Science Foundation of Tianjin (Grant No. 20JCQNJC02020).

Ballistic magnon circulators with magnetic skyrmions

Haichuan Zhang(张海川)1,2, Hongbin Wu(武宏斌)1,2, and Jin Lan(兰金)1,2,†   

  1. 1 Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University, Tianjin 300072, China;
    2 Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Tianjin University, Tianjin 300354, China
  • Received:2025-04-16 Revised:2025-05-14 Accepted:2025-05-20 Published:2025-10-24
  • Contact: Jin Lan E-mail:lanjin@tju.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Grant Nos. 12374117 and 11904260) and the Natural Science Foundation of Tianjin (Grant No. 20JCQNJC02020).

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摘要： Spin waves, quantized as magnons, constitute a fundamental class of excitations and serve as one of the primary angular momentum carriers in magnetic systems. Devoid of Joule heating, a magnonic device that routes spin waves between different ports holds promise for an energy-efficient information infrastructure. Here, we systematically investigate the transport behavior of a magnetic skyrmion-based magnon circulator, a representative device that directs spin wave flow in a non-reciprocal manner. Particularly, a ballistic transport model is established, where the scattering of spin waves by magnetic skyrmions is simplified as magnon deflection by fictitious electromagnetic fields within the skyrmions. Through the combination of ballistic analyses and micromagnetic simulations, the circulation performance is rigorously evaluated for multiple magnon circulators.

关键词: spin wave, ballistic transport, magnetic skyrmion, circulator

Abstract: Spin waves, quantized as magnons, constitute a fundamental class of excitations and serve as one of the primary angular momentum carriers in magnetic systems. Devoid of Joule heating, a magnonic device that routes spin waves between different ports holds promise for an energy-efficient information infrastructure. Here, we systematically investigate the transport behavior of a magnetic skyrmion-based magnon circulator, a representative device that directs spin wave flow in a non-reciprocal manner. Particularly, a ballistic transport model is established, where the scattering of spin waves by magnetic skyrmions is simplified as magnon deflection by fictitious electromagnetic fields within the skyrmions. Through the combination of ballistic analyses and micromagnetic simulations, the circulation performance is rigorously evaluated for multiple magnon circulators.

Key words: spin wave, ballistic transport, magnetic skyrmion, circulator

中图分类号:  (Spin waves)

  • 75.30.Ds
73.23.Ad (Ballistic transport) 85.70.-w (Magnetic devices) 42.25.Ja (Polarization)