中国物理B ›› 2022, Vol. 31 ›› Issue (12): 127503-127503.doi: 10.1088/1674-1056/ac9b02

• • 上一篇    下一篇

Observation of nonlinearity and heating-induced frequency shifts in cavity magnonics

Wei-Jiang Wu(吴维江), Da Xu(徐达), Jie Qian(钱洁), Jie Li(李杰), Yi-Pu Wang(王逸璞), and Jian-Qiang You(游建强)   

  1. Interdisciplinary Center of Quantum Information and Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics and State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China
  • 收稿日期:2022-06-08 修回日期:2022-09-16 接受日期:2022-10-18 出版日期:2022-11-11 发布日期:2022-11-19
  • 通讯作者: Da Xu, Yi-Pu Wang E-mail:daxu@zju.edu.cn;yipuwang@zju.edu.cn

Observation of nonlinearity and heating-induced frequency shifts in cavity magnonics

Wei-Jiang Wu(吴维江), Da Xu(徐达), Jie Qian(钱洁), Jie Li(李杰), Yi-Pu Wang(王逸璞), and Jian-Qiang You(游建强)   

  1. Interdisciplinary Center of Quantum Information and Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics and State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China
  • Received:2022-06-08 Revised:2022-09-16 Accepted:2022-10-18 Online:2022-11-11 Published:2022-11-19
  • Contact: Da Xu, Yi-Pu Wang E-mail:daxu@zju.edu.cn;yipuwang@zju.edu.cn

摘要: When there is a certain amount of field inhomogeneity, the biased ferrimagnetic crystal can exhibit the higher-order magnetostatic (HMS) mode in addition to the uniform-precession Kittel mode. In cavity magnonics, we show the nonlinearity and heating-induced frequency shifts of the Kittel mode and HMS mode in a yttrium-iron-garnet (YIG) sphere. When the Kittel mode is driven to generate a certain number of excitations, the temperature of the whole YIG sample rises and the HMS mode can display an induced frequency shift, and vice versa. This cross effect provides a new method to study the magnetization dynamics and paves a way for novel cavity magnonic devices by including the heating effect as an operational degree of freedom.

关键词: magnon, magnetostatic mode, temperature, yttrium-iron-garnet (YIG)

Abstract: When there is a certain amount of field inhomogeneity, the biased ferrimagnetic crystal can exhibit the higher-order magnetostatic (HMS) mode in addition to the uniform-precession Kittel mode. In cavity magnonics, we show the nonlinearity and heating-induced frequency shifts of the Kittel mode and HMS mode in a yttrium-iron-garnet (YIG) sphere. When the Kittel mode is driven to generate a certain number of excitations, the temperature of the whole YIG sample rises and the HMS mode can display an induced frequency shift, and vice versa. This cross effect provides a new method to study the magnetization dynamics and paves a way for novel cavity magnonic devices by including the heating effect as an operational degree of freedom.

Key words: magnon, magnetostatic mode, temperature, yttrium-iron-garnet (YIG)

中图分类号:  (Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance)

  • 76.50.+g
75.30.Gw (Magnetic anisotropy) 85.70.Ge (Ferrite and garnet devices) 75.10.Hk (Classical spin models)