Magnonic spin-wave modes in CoFeB antidot lattices
arXiv:1006.4038 · doi:10.1063/1.3483136
Abstract
In this manuscript time-resolved magneto-optical Kerr effect experiments on structured CoFeB films are presented. The geometries considered are two dimensional square lattices of micrometer-sized antidots, fabricated by a focused ion beam. The spin-wave spectra of these magnonic crystals show a novel precessional mode, which can be related to a Bloch state at the zone boundary. Additionally, another magnetic mode of different nature appears, whose frequency displays no dependence on the externally applied magnetic field. These findings are interpreted as delocalized and localized modes, respectively.
4 pages, 3 figures
References in corpus (4)
- Scattering of backward spin waves in a one-dimensional magnonic crystal
- Intrinsic and non-local Gilbert damping in polycrystalline nickel studied by Ti:Sapphire laser fs spectroscopy
- Connecting the timescales in picosecond remagnetization experiments
- Correlation between magnetism and spin-dependent transport in CoFeB alloys
Cited by in corpus (11)
- The building blocks of magnonics
- Magnonic crystals for data processing
- Magnetization Dynamics of Nanoscale Magnetic Materials: A Perspective
- Dynamic cantilever magnetometry of individual CoFeB nanotubes
- Driving magnetization dynamics in an on-demand magnonic crystal by magneto-elastic interaction
- Magnon Polarons induced by a magnetic field gradient
- Perpendicularly magnetized CoFeB multilayers with tunable interlayer exchange for synthetic ferrimagnets
- Spin-wave modes and band structure of rectangular CoFeB antidot lattices
- Magnetization dynamics in magnonic structures with different geometries: interfaces, notches and waveguides
- Photo-magnonics
- Spin-current manipulation of photoinduced magnetization dynamics in heavy metal / ferromagnet double layer based nanostructures