Hybrid Magnonics for Short-Wavelength Spin Waves Facilitated by a Magnetic Heterostructure
- Oakland Univ., Rochester, MI (United States)
- Oakland Univ., Rochester, MI (United States); Argonne National Lab. (ANL), Lemont, IL (United States)
- Wayne State Univ., Detroit, MI (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States)
- Northeastern Univ., Boston, MA (United States)
Recent research on hybrid magnonics has been restricted by the long magnon wavelengths of the ferromagnetic resonance modes. Here, we present an experiment on the hybridization of 250-nm-wavelength magnons with microwave photons in a multimode magnonic system consisting of a planar cavity and a magnetic bilayer. The coupling between magnon modes in the two magnetic layers, i.e., the uniform mode in Permalloy and the perpendicular standing spin waves (PSSWs) in yttrium iron garnet, serves as an effective means for exciting short-wavelength PSSWs, which is further hybridized with the photon mode of the microwave resonator. The demonstrated magnon-photon coupling approaches the superstrong coupling regime, and can even be achieved near zero bias field.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- Grant/Contract Number:
- AC02-06CH11357; ECCS-1941426; ECCS-1933301; AFOSR-FA2386-21-1-4091
- OSTI ID:
- 1909696
- Journal Information:
- Physical Review Applied, Vol. 17, Issue 4; ISSN 2331-7019
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Probing magnon–magnon coupling in exchange coupled Y3Fe5O12/Permalloy bilayers with magneto-optical effects
Tunable Magnetically Induced Transparency Spectra in Magnon-Magnon Coupled