Publication Date:
2016-01-01
Description:
This paper develops a self-biased magnetoelectric (ME) composite Metglas/H-type-FeNi/PZT (MHFP) of H-type magnetization-graded Metglas/H-type-FeNi fork and piezoelectric Pb(Zr,Ti)O 3 (PZT) plate. By using the magnetization-graded magnetostrictive layer and symmetrical H-type structure, giant self-biased ME coupling and multi-peak phenomenon are observed. The zero-biased ME voltage coefficient of MHFP composite reaches ∼63.8 V/cm Oe, which is ∼37.5 times higher than that of traditional FeNi/PZT laminate. The output ME voltage has a good near linear relation with H ac and is determined to be ∼5.1 V/Oe and ∼10.6 mV/Oe at ∼65 kHz and 1 kHz, respectively. These indicate that the proposed composite show promising applications for ME transducers and high-sensitivity self-biased magnetic sensors.
Print ISSN:
0021-8979
Electronic ISSN:
1089-7550
Topics:
Physics