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Title: Identification of spin wave modes in yttrium iron garnet strongly coupled to a co-axial cavity

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.4907694· OSTI ID:22413042
;  [1]
  1. Hitachi Cambridge Laboratory, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE (United Kingdom)

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.

OSTI ID:
22413042
Journal Information:
Journal of Applied Physics, Vol. 117, Issue 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
Country of Publication:
United States
Language:
English