Identification of spin wave modes strongly coupled to a co-axial cavity

Abstract

We demonstrate, at room temperature, the strong coupling of the fundamental and non-uniform magnetostatic modes of an yttrium iron garnet (YIG) 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, are able to identify the modes themselves.

9 Pages, 3 figures, 1 table

References in corpus (3)

• Strongly coupled magnons and cavity microwave photons
• Hybridizing ferromagnetic magnons and microwave photons in the quantum limit
• High Cooperativity Cavity QED with Magnons at Microwave Frequencies

Cited by in corpus (6)

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• Enhancing the spin-photon coupling with a micromagnet
• Control of magnon-photon coupling strength in a planar resonator/YIG thin film configuration