Abstract
A stress-biased magnetoelectric sensor with a built-in permanent magnet has been fabricated using piezoelectric lead magnesium niobate-lead titanate single crystal and magnetostrictive Terfenol-D alloy. The resonance characteristics and magnetoelectric performance of the sensor have been evaluated under different stress-biased conditions. The resonance of the sensor shifts to higher frequency with increasing preloading stress. Due to the piezoelectric and magnetostrictive enhancements under preload, the device exhibits a giant magnetoelectric voltage coefficient of 0.22 V/Oe at a preloading stress of 2.5 MPa. This compact device has the potential to be used as a standalone sensor without requiring external power input.
Original language | English |
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Article number | 024505 |
Journal | Journal of Applied Physics |
Volume | 109 |
Issue number | 2 |
DOIs | |
Publication status | Published - 15 Jan 2011 |
ASJC Scopus subject areas
- General Physics and Astronomy