Stress reconfigurable tunable magnetoelectric resonators as magnetic sensors

We report a magnetoelastic effect in doubly clamped ferromagnetic magnetostrictive Metglas resonators with electrically and magnetically reconfigurable frequency response. The field-induced resonance frequency shift is due to magnetostrictive strain, which is shown to have a strong dependence on uni...

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Veröffentlicht in:Applied physics letters 2013-01, Vol.102 (4)
Hauptverfasser: Kiser, Jillian, Finkel, Peter, Gao, Junqi, Dolabdjian, Christophe, Li, Jiefang, Viehland, D.
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Sprache:eng
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Zusammenfassung:We report a magnetoelastic effect in doubly clamped ferromagnetic magnetostrictive Metglas resonators with electrically and magnetically reconfigurable frequency response. The field-induced resonance frequency shift is due to magnetostrictive strain, which is shown to have a strong dependence on uniaxial stress. Here, we demonstrate that this magnetic field induced behavior can be used as the basis for a simple, tunable, magnetoelectric magnetic field sensor. The effect of tension on the field dependent magnetostrictive constant and the sensor sensitivity is examined, and the equivalent magnetic noise floor of such a sensor is estimated.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4789500