Ferromagnetic films with magnon bandgap periodic structures: Magnon crystals |
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| Authors: | Yu. V. Gulyaev S. A. Nikitov L. V. Zhivotovskii A. A. Klimov Ph. Tailhades L. Presmanes C. Bonningue C. S. Tsai S. L. Vysotskii Yu. A. Filimonov |
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| Affiliation: | (1) Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, 125009, Russia;(2) CIRIMAT, UMR-CNRS 5085, Universite Paul Sabatier, 31062 Toulouse, France;(3) Institute for Applied Sciences and Engineering Research, Academia Sinica, 11529 Taipei, Taiwan;(4) Department of Electrical and Computer Engineering, University of California, CA 92697 Irvine, USA;(5) Institute of Radio Engineering and Electronics Saratov Branch, Russian Academy of Sciences, Saratov, 410008, Russia |
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| Abstract: | A new type of photonic crystals is proposed. The new crystals have a forbidden gap in the microwave spectrum of magnetostatic spin waves, and, by analogy with photonic crystals, they are called magnon crystals. Specimens of such crystals were fabricated on the basis of yttrium iron garnet films. The surfaces of ferromagnetic films containing two-dimensional etched hole structures were studied by atomic force and magnetic force mag-netometry. The propagation of spin waves through the magnon crystals was investigated. |
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