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Band structures tunability of bulk 2D phononic crystals made of magneto-elastic materials
9. J.-F. Robillard, O. Bou Matar, J. O. Vasseur, P. A. Deymier, M. Stippinger, A.-C. Hladky-Hennion, Y. Pennec and B. Djafari-Rouhani, Appl. Phys. Lett. 95, 124104 (2009).
17. S. Khizroev and D. Litvinov, Perpendicular Magnetic Recording (Kluwer Academic Publishers, Dordrecht, The Netherland, 2010).
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The feasibility of contactless tunability of the band structure of two-dimensional phononic crystals is demonstrated by employing magnetostrictive materials and applying an external magnetic field. The influence of the amplitude and of the orientation with respect to the inclusion axis of the applied magnetic field are studied in details. Applications to tunable selective frequency filters with switching functionnality and to reconfigurable wave-guides and demultiplexing devices are then discussed.
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