Dispersive readout of ferromagnetic resonance for strongly coupled magnons and microwave photons
Dispersive readout of ferromagnetic resonance for strongly coupled magnons and microwave photons
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DOI：
10.1103/physrevb.91.104410
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发表时间：
2015-03-16
影响因子：
3.7
通讯作者：
Ferguson, A. J.
中科院分区：
文献类型：
--
作者：
Haigh, J. A.;Lambert, N. J.;Ferguson, A. J.
我们演示了微波腔中钇铁石榴石球铁磁共振的色散测量。共振时纵向磁化强度的降低被测量为耦合到球体的腔模式中的频移。这种测量是磁化动力学中固有的非线性的结果，表明了磁振子腔量子电动力学实验的一条有前途的路线。
We demonstrate the dispersive measurement of ferromagnetic resonance in a yttrium iron garnet sphere embedded within a microwave cavity. The reduction in the longitudinal magnetization at resonance is measured as a frequency shift in the cavity mode coupled to the sphere. This measurement is a result of the intrinsic nonlinearity in magnetization dynamics, indicating a promising route towards experiments in magnon cavity quantum electrodynamics.