Tunable magnetoelastic phononic crystals

J. F. Robillard; O. Bou Matar; J. O. Vasseur; P. A. Deymier; M. Stippinger; A. C. Hladky-Hennion; Y. Pennec; B. Djafari-Rouhani

doi:10.1063/1.3236537

Tunable magnetoelastic phononic crystals

J. F. Robillard, O. Bou Matar, J. O. Vasseur, P. A. Deymier, M. Stippinger, A. C. Hladky-Hennion, Y. Pennec, B. Djafari-Rouhani

Research output: Contribution to journal › Article › peer-review

191 Scopus citations

Abstract

The feasibility of tuning the band structure of phononic crystals is demonstrated by employing magnetostrictive materials and applying an external magnetic field. Band structures are calculated with a plane wave expansion method that accounts for coupling between the elastic behavior and the magnetic field through the development of elastic, piezomagnetic, and magnetic permeability effective tensors. We show the contactless tunability of the absolute band gaps of a two-dimensional phononic crystal composed of an epoxy matrix and Terfenol-D inclusions. The tunable phononic crystal behaves like a transmission switch for elastic waves when the magnitude of an applied magnetic field crosses a threshold.

Original language	English (US)
Article number	124104
Journal	Applied Physics Letters
Volume	95
Issue number	12
DOIs	https://doi.org/10.1063/1.3236537
State	Published - 2009

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3236537

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abstract = "The feasibility of tuning the band structure of phononic crystals is demonstrated by employing magnetostrictive materials and applying an external magnetic field. Band structures are calculated with a plane wave expansion method that accounts for coupling between the elastic behavior and the magnetic field through the development of elastic, piezomagnetic, and magnetic permeability effective tensors. We show the contactless tunability of the absolute band gaps of a two-dimensional phononic crystal composed of an epoxy matrix and Terfenol-D inclusions. The tunable phononic crystal behaves like a transmission switch for elastic waves when the magnitude of an applied magnetic field crosses a threshold.",

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AU - Matar, O. Bou

AU - Vasseur, J. O.

AU - Deymier, P. A.

AU - Stippinger, M.

AU - Hladky-Hennion, A. C.

AU - Pennec, Y.

AU - Djafari-Rouhani, B.

PY - 2009

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AB - The feasibility of tuning the band structure of phononic crystals is demonstrated by employing magnetostrictive materials and applying an external magnetic field. Band structures are calculated with a plane wave expansion method that accounts for coupling between the elastic behavior and the magnetic field through the development of elastic, piezomagnetic, and magnetic permeability effective tensors. We show the contactless tunability of the absolute band gaps of a two-dimensional phononic crystal composed of an epoxy matrix and Terfenol-D inclusions. The tunable phononic crystal behaves like a transmission switch for elastic waves when the magnitude of an applied magnetic field crosses a threshold.

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ER -

Tunable magnetoelastic phononic crystals

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