Dispersion characteristics of spin waves in planar periodic structures based on ferromagnetic films |
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| Authors: | N. Yu. Grigorieva and B. A. Kalinikos |
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| Affiliation: | (1) Microwave Research Group, University of South Asia, Lahore, 54000, Pakistan;(2) Department of Physics, INMOL, Lahore, 54600, Pakistan;(3) Microwave and Communication Systems Research Group, School of Electrical & Electronic Engineering, University of Manchester, Manchester, M60 1QD, England, UK |
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| Abstract: | A technique for calculating the dispersion characteristics of planar periodic magnetic structures is suggested. It is based on joint application of the spin-wave mode analytical approach and the transfer matrix formalism. The dispersion characteristics of a planar periodic waveguiding medium representing a thin ferromagnetic film with an array of metallic strips (metallic grating) on its surface are calculated. It is shown that the dispersion characteristics of planar periodic structures based on ferromagnetic films depend, not only on the geometry of the waveguiding system, but also on the surface anisotropy of the initial film. |
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