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.
作者
吴维江
徐达
钱洁
李杰
王逸璞
游建强
Wei-Jiang Wu;Da Xu;Jie Qian;Jie Li;Yi-Pu Wang;Jian-Qiang You(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)
基金
Project supported by the National Natural Science Foundation of China(Grants Nos.11934010,U1801661,and 12174329)
the Zhejiang Province Program for Science and Technology(Grant No.2020C01019)
the Fundamental Research Funds for the Central Universities(Grant No.2021FZZX001-02)
the China Postdoctoral Science Foundation(Grant No.2019M660137)
