Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/30066
Title: Voltage-mode direct-current magnetoelectric sensor based on piezoelectric-magnetostrictive heterostructure
Authors: Zhang, L
Or, SW 
Leung, CM
Issue Date: 2015
Publisher: American Institute of Physics
Source: Journal of applied physics, 2015, v. 117, no. 17, 17A748 How to cite?
Journal: Journal of applied physics 
Abstract: A dc magnetoelectric sensor operating in ac voltage driving mode is developed based on a piezoelectric-magnetostrictive heterostructure having four thickness-polarized Pb(Zr, Ti)O3 piezoelectric plates bonded symmetrically on a length-magnetized Tb0.3Dy0.7Fe1.92 magnetostrictive plate to give an electrically parallel input and an electrically series output. The dc magnetic field sensing in the sensor is evaluated theoretically and experimentally and is found to originate from a unique ac voltage-driven, dc magnetic field-tuned resonance dc magnetoelectric effect in the heterostructure. An interestingly high, linear, and negative ac voltage-controlled dc magnetic field sensitivity of -1.3 mV/Oe/V is obtained in a broad range of dc magnetic field of 0-400 Oe by referencing an ac voltage of ?5 V peak amplitude and 116 kHz frequency at the input of the heterostructure.
URI: http://hdl.handle.net/10397/30066
ISSN: 0021-8979
EISSN: 1089-7550
DOI: 10.1063/1.4919047
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