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Tuning edge-localized spin waves in magnetic microstripes by proximate magnetic structures

Zhang, Zhizhi ; Vogel, Michael ; Jungfleisch, M. Benjamin ; Hoffmann, Axel ; Nie, Yan ; Novosad, Valentine

Physical Review, B: Condensed Matter, 2019-11, Vol.100 (17), p.174434, Article 174434 [Periódico revisado por pares]

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Título:
Tuning edge-localized spin waves in magnetic microstripes by proximate magnetic structures
Autor: Zhang, Zhizhi ; Vogel, Michael ; Jungfleisch, M. Benjamin ; Hoffmann, Axel ; Nie, Yan ; Novosad, Valentine
Assuntos: Dispersion curve analysis ; Ferrous alloys ; Magnetic alloys ; Magnons ; Wave propagation ; Yttrium ; Yttrium-iron garnet
É parte de: Physical Review, B: Condensed Matter, 2019-11, Vol.100 (17), p.174434, Article 174434
Notas: AC02-06CH11357
China Scholarship Council
National Science Foundation (NSF)
USDOE Office of Science - Office of Basic Energy Sciences - Materials Sciences and Engineering Division
Descrição: The propagation of edge localized spin waves (E-SWs) in yttrium iron garnet (YIG; Y3Fe5O12) microstripes with and without magnetic microstructures in close proximity is investigated by micromagnetic simulations. A splitting of the dispersion curve with the presence of permalloy (Py; Ni81Fe19) stripe is observed. The results show that E-SWs on the two edges of YIG stripe have different wavelengths, group velocities, and decay lengths at the same frequencies. The role of the Py stripe was found to be the source of the inhomogeneous static dipolar field without dynamic coupling with YIG. This work opens new perspectives for the design of innovative spin wave interference-based logic devices.
Editor: College Park: American Physical Society
Idioma: Inglês

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