Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4352
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Title: Enhanced magnetoelectric effect in a stress-biased lead magnesium niobate-lead titanate single crystal/Terfenol-D alloy magnetoelectric sensor
Authors: Lam, KH
Lo, CY
Dai, J 
Chan, HLW 
Luo, H
Issue Date: 15-Jan-2011
Source: Journal of applied physics, 15 Jan. 2011, v. 109, no. 2, 024505, p. 1-4
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.
Keywords: Lead compounds
Magnetic sensors
Magnetoelectric effects
Magnetostriction
Permanent magnets
Piezoceramics
Publisher: American Institute of Physics
Journal: Journal of applied physics 
ISSN: 0021-8979
EISSN: 1089-7550
DOI: 10.1063/1.3536636
Rights: © 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in K. H. Lam et al., J. Appl. Phys. 109, 024505 (2011) and may be found at http://link.aip.org/link/?jap/109/024505.
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