Identification of spin wave modes in yttrium iron garnet strongly coupled to a co-axial cavity
Identification of spin wave modes in yttrium iron garnet strongly coupled to a co-axial cavity
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DOI：
10.1063/1.4907694
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发表时间：
2015-02-07
影响因子：
3.2
通讯作者：
Ferguson, A. J.
中科院分区：
文献类型：
--
作者：
Lambert, N. J.;Haigh, J. A.;Ferguson, A. J.
我们证明，在室温下，钇铁石榴石亚铁磁球的基本和非均匀的静磁模式的强耦合的电磁模式的同轴腔。腔体内的明确定义的场分布产生用于每个静磁模式的特定耦合强度。我们实验测量不同的静磁模式的耦合强度，并通过计算预期的耦合强度，我们能够识别模式本身。(C)2015 AIP Publishing LLC.
We demonstrate, at room temperature, the strong coupling of the fundamental and non-uniform magnetostatic modes of an yttrium iron garnet ferrimagnetic sphere to the electromagnetic modes of a co-axial cavity. The well-defined field profile within the cavity yields a specific coupling strength for each magnetostatic mode. We experimentally measure the coupling strength for the different magnetostatic modes and, by calculating the expected coupling strengths, we are able to identify the modes themselves. (C) 2015 AIP Publishing LLC.