Spin wave propagation spectra in Octonacci one-dimensional magnonic quasicrystals

Valeriano, Analine P.; Costa, Carlos H.; Bezerra, C. G.

doi:10.1016/j.jmmm.2018.02.042

Cited by 3 publications

(1 citation statement)

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“…[21][22][23][24] Moreover, the quasiperiodic and fractal ASS offer interesting spectra of the spin wave excitations, which can be controlled and modified in magnetization reversal process, which is potentially useful for applications in magnonics. [25][26][27][28][29][30][31] The chain of magnetic nanowires (NWs) is one of the simplest geometry, nevertheless, it allows for systematic investigation of the complexity resulting from the longrange dipole interactions in periodic and non-periodic structures. [32][33][34] In the paper, we investigate experimentally and theoretically the magnetization reversal process in the periodic and QPS consisting of the wide and narrow Py (Ni 80 Fe 20 ) NWs of finite length collected into the ribbon, and also in the array of ribbons.…”

Section: Introductionmentioning

confidence: 99%

Remagnetization in arrays of ferromagnetic nanostripes with periodic and quasiperiodic order

et al. 2019

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We investigate experimentally and theoretically the magnetization reversal process in onedimensional magnonic structures composed of permalloy nanowires of the two different widths and finite length arranged in a periodic and quasiperiodic order. The main features of the hysteresis loop are determined by different shape anisotropies of the component elements and the dipolar interactions between them. We showed, that the dipolar interactions between nanowires forming a ribbon can be controlled by change a distance between the neighboring ribbons. The quasiperiodic order can influence the hysteresis loop by introduction additional tiny switching steps when the dipolar interactions are sufficiently strong. arXiv:1810.02796v1 [cond-mat.mes-hall]

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