Spatial Control of Hybridization-Induced Spin-Wave Transmission Stop Band
arXiv:2403.15840 · doi:10.1063/5.0188193
Abstract
Spin-wave (SW) propagation close to the hybridization-induced transmission stop band is investigated within a trapezoid-shaped 200\,nm thick yttrium iron garnet (YIG) film using time-resolved magneto-optic Kerr effect (TR-MOKE) microscopy and broadband spin wave spectroscopy, supported by micromagnetic simulations. The gradual reduction of the effective field within the structure leads to local variations of the SW dispersion relation and results in a SW hybridization at a fixed position in the trapezoid where the propagation vanishes since the SW group velocity approaches zero. By tuning external field or frequency, spatial control of the spatial stop band position and spin-wave propagation is demonstrated and utilized to gain transmission control over several microstrip lines.
References in corpus (5)
- Realization of XNOR and NAND spin-wave logic gates
- A spin-wave logic gate based on a width-modulated dynamic magnonic crystal
- Creation of uni-directional spin-wave emitters by utilizing interfacial Dzyaloshinskii-Moriya interaction
- Fundamentals of magnon-based computing
- Caustic spin wave beams in soft, thin films: properties and classification