|
XXII International Symposium ''Nanophysics and Nanoelectronics'', Nizhny Novgorod, March 12-15, 2018
Magnetism
Ferromagnetic resonance in square lattices of planar magnetic cross-shaped elements
R. V. Gorev, M. V. Sapozhnikov, V. L. Mironov Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod
Abstract:
Ferromagnetic resonance (FMR) in planar thin film structures comprised of magnetic cross-shaped elements arranged into square lattices has been studied by micromagnetic simulation. FMR spectra and spatial distributions of amplitudes of resonant oscillations were determined for vortex and antivortex states of magnetization in lattice crosses. Resonant modes have the shape of rotating magnetization distributions. Herewith, modes with the same configuration of magnetization but rotating in reverse directions are frequency split. The observed nonreciprocity of propagation of resonant spin oscillations is determined by the sign of magnetization distribution vorticity.
Keywords:
Antivortex, Micromagnetic Simulations, Magnetization Distribution, Core Precession, Object Oriented Micromagnetic Framework (OOMMF).
Citation:
R. V. Gorev, M. V. Sapozhnikov, V. L. Mironov, “Ferromagnetic resonance in square lattices of planar magnetic cross-shaped elements”, Fizika Tverdogo Tela, 60:11 (2018), 2177–2180; Phys. Solid State, 60:11 (2018), 2218–2221
Linking options:
https://www.mathnet.ru/eng/ftt9013 https://www.mathnet.ru/eng/ftt/v60/i11/p2177
|
|