A rigorous two-dimensional model for the stripline ferromagnetic resonance response of metallic ferromagnetic films
arXiv:1412.0777 · doi:10.1063/1.4907535
Abstract
In this work we constructed a two-dimensional numerical model for calculation of the stripline ferromagnetic resonance (FMR) response of metallic ferromagnetic films. We also conducted numerical calculations by using this software. The calculations demonstrated that the eddy current contribution to the FMR response decreases with a decrease in the stripline width. The most important manifestations of the conductivity (eddy current) effect are excitation of the higher-order standing spin waves across the film thickness in the materials for which the standing spin wave peaks would be absent in cavity FMR measurements and strong dependence of the off-resonance series conductance of the stripline on the stripline width. Whereas the contribution of the eddy currents to the stripline FMR response can be very significant, because wide striplines (100nm+) are conventionally used for the FMR measurements, it is negligible in the case of excitation of spin waves, just because very narrow stripline transducers (0.5-5micron wide) are required in order to excite spin waves in metallic ferromagnetic films in a noticeable frequency/applied field range.
References in corpus (6)
- Precise determination of the spectroscopic g-factor using broadband ferromagnetic resonance spectroscopy
- Strong asymmetry of microwave absorption by bi-layer conducting ferromagnetic films in the microstrip-line based broadband ferromagnetic resonance
- Dynamic pinning at a Py/Co interface measured using inductive magnetometry
- Magnetization pinning in conducting films demonstrated using broadband ferromagnetic resonance
- Micro-strip ferromagnetic resonance study of strain-induced anisotropy in amorphous FeCuNbSiB film on flexible substrate
- Impact of eddy currents on the dispersion relation of surface spin waves in thin conducting magnetic films
Cited by in corpus (3)
- Eddy-current effects on ferromagnetic resonance: Spin wave excitations and microwave screening effects
- Coupling of microwave magnetic dynamics in thin ferromagnetic films to stripline transducers in the geometry of the broadband stripline ferromagnetic resonance
- Using rf voltage induced ferromagnetic resonance to study the spin-wave density of states and the Gilbert damping in perpendicularly magnetized disks