Spin-Wave frequency division multiplexing in an yttrium iron garnet microstripe magnetized by inhomogeneous field
arXiv:1910.07136 · doi:10.1063/1.5127881
Abstract
Spin waves are promising candidates for information processing and transmission in a broad frequency range. In the realization of magnonic devices, the frequency depended division of the spin wave frequencies is a critical function for parallel information processing. In this work, we demonstrate a proof-of-concept spin-wave frequency division multiplexing method by magnetizing a homogenous magnetic microstripe with an inhomogeneous field. The symmetry breaking additional field is introduced by a permalloy stripe simply placed in lateral proximity to the waveguide. Spin waves with different frequencies can propagate independently, simultaneously and separately in space along the shared waveguide. This work brings new potentials for parallel information transmission and processing in magnonics.
arXiv comment9 pages, 4 figures
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- Comparison of spin-wave transmission in parallel and antiparallel magnetic configurations
- Unidirectional propagation of spin waves excited by femtosecond laser pulses in a planar waveguide
- Experimental Observation of a Magnetic Interfacial Effect
- Nonreciprocal Spin Waves Driven by Left-Hand Microwaves
- Efficient geometrical control of spin waves in microscopic YIG waveguides
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