Magnonic band structure in a Co/Pd stripe domain system investigated by Brillouin light scattering and micromagnetic simulations
Magnonic band structure in a Co/Pd stripe domain system investigated by Brillouin light scattering and micromagnetic simulations
Banerjee, C.; Gruszecki, P.; Klos, J. W.; Hellwig, O.; Krawczyk, M.; Barman, A.
Abstract
By combining Brillouin light scattering and micromagnetic simulations, we studied the spin-wave (SW) dynamics of a Co/Pd thin film multilayer, which features a stripe domain structure at remanence. The periodic up and down domains are separated by corkscrew type domain walls. The existence of these domains causes a scattering of the otherwise bulk and surface SW modes, which form mode families, similar to a one-dimensional magnonic crystal. The dispersion relation and mode profiles of SWs are measured for the transferred wave vector parallel and perpendicular to the domain axis.
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Physical Review B 96(2017), 024421
DOI: 10.1103/PhysRevB.96.024421
Cited 46 times in Scopus
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Permalink: https://www.hzdr.de/publications/Publ-26001