The influence of the demagnetizing field on the concentration of spin wave energy in two-dimensional magnonic crystals

Mamica, S.

doi:10.1016/j.jmmm.2023.171395

Journal of Magnetism and Magnetic Materials

2023

DOI: 10.1016/j.jmmm.2023.171395

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The influence of the demagnetizing field on the concentration of spin wave energy in two-dimensional magnonic crystals

S. Mamica

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2024

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Spin-wave mode coupling in the presence of the demagnetizing field in cobalt-permalloy magnonic crystals

Mamica

2024

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We present the results of studies on the non-uniform frequency shift of spin wave spectrum in a two-dimensional magnonic crystal of cobalt/permalloy under the influence of external magnetic field changes. We investigate the phenomenon of coupling of modes and, as a consequence, their hybridization. By taking advantage of the fact that compressing the crystal structure along the direction of the external magnetic field leads to an enhancement of the demagnetizing field, we analyse its effect on the frequency shift of individual modes depending on their concentration in Co. We show that the consequence of this enhancement is a shift in the coupling of modes towards higher magnetic fields. This provides a potential opportunity to design which pairs of modes and in what range of fields hybridization will occur.

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Spin-wave mode coupling in the presence of the demagnetizing field in cobalt-permalloy magnonic crystals

Mamica

2024

Sci Rep

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The influence of the demagnetizing field on the concentration of spin wave energy in two-dimensional magnonic crystals

Cited by 1 publication

References 45 publications

Spin-wave mode coupling in the presence of the demagnetizing field in cobalt-permalloy magnonic crystals

Spin-wave mode coupling in the presence of the demagnetizing field in cobalt-permalloy magnonic crystals

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