Effect of Interrow Magnetic Coupling on Band Structures of 2-D Magnonic Crystal Waveguides
| Autor: | Zhikui Wang, Fusheng Ma, Meng Hau Kuok, Ser Choon Ng, S. N. Piramanayagam, Hock Siah Lim |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Condensed matter physics Condensed Matter::Other Band gap Wave propagation Magnon Yttrium iron garnet Physics::Optics Electronic Optical and Magnetic Materials Crystal Condensed Matter::Materials Science chemistry.chemical_compound chemistry Spin wave Dispersion (optics) Condensed Matter::Strongly Correlated Electrons Electrical and Electronic Engineering Nonlinear Sciences::Pattern Formation and Solitons Photonic crystal |
| Zdroj: | IEEE Transactions on Magnetics. 47:2689-2692 |
| ISSN: | 1941-0069 0018-9464 |
| DOI: | 10.1109/tmag.2011.2156767 |
| Popis: | We report a micromagnetic investigation of the propagation of spin waves in bi-component magnonic crystal waveguides. The investigated nanostructured waveguides are in the form of regular square lattice arrays of circular Fe dots embedded in a yttrium iron garnet matrix. Magnonic bandgaps of the order of 10 GHz are observed in both calculated frequency power spectra and dispersion curves of spin wave. The effect of the variation of the period along the direction perpendicular to spin wave propagation on magnonic band structures of magnonic crystal waveguides has been investigated. Micromagnetic simulations show that the first bandgap is more sensitive to variations of period than the second bandgap. |
| Databáze: | OpenAIRE |
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