Spin wave pulses in magnonic bilayers with dispersive coupling
Por:
Kolokoltsev O., Arista I.G., Ordoñez-Romero C.L., Qureshi N.
Publicada:
1 ene 2025
Resumen:
A study of peculiarities associated with the propagation of short pulses of surface magnetostatic waves in a yttrium iron garnet (YIG) thin film bilayer is presented from both an experimental and theoretical perspective. A magnetic bilayer structure has been modelled using spatiotemporal coupled mode theory, including a dispersion term for the coupling coefficient. Both the experiment and the theory show that the dispersion of the coupling coefficient plays an important role in shaping the pulse envelope and can result in the splitting of the incident pulse into two pulses. The energy exchange between the ferrite layers can be interrupted when the dispersion of the coefficient is high enough. © 2025 Elsevier B.V.
Filiaciones:
Kolokoltsev O.:
Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, CU 04510, Cd. México, Mexico
Arista I.G.:
CONAHCYT – INAOE, Luis Enrique Erro 1, Tonantzintla, CP, Puebla, 72840, Mexico
Ordoñez-Romero C.L.:
Instituto de Física, Universidad Nacional Autónoma de México, D.F, CU, 04510, Mexico
Qureshi N.:
Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, CU 04510, Cd. México, Mexico
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