An analytical reciprocal-space framework is presented for symmetric and antisymmetric collective spin-wave modes arising from dipolar coupling in exchange-decoupled magnetic bilayers, giving direct access to dispersion relations and mode shapes.
Journal of Physics: Condensed Matter , abstract =
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A continuous 50-nm Permalloy film on 400-nm-period nanopyramid templates forms a 2D magnonic crystal exhibiting a complete tunable in-plane band gap and strongly localized flat-band modes due to curvature-induced demagnetizing fields.
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Reciprocal Space Approach to Dipolarly Coupled Magnetic Hetero-Structures
An analytical reciprocal-space framework is presented for symmetric and antisymmetric collective spin-wave modes arising from dipolar coupling in exchange-decoupled magnetic bilayers, giving direct access to dispersion relations and mode shapes.
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Sculpting Spin-Wave Landscapes via Curvature of 2D Magnonic Crystals
A continuous 50-nm Permalloy film on 400-nm-period nanopyramid templates forms a 2D magnonic crystal exhibiting a complete tunable in-plane band gap and strongly localized flat-band modes due to curvature-induced demagnetizing fields.