Circumferential-mode, quasi-ring-type, magnetoelectric laminate composite—a highly sensitive electric current and/or vortex magnetic field sensor

Shuxiang Dong; Bai, John G.; Junyi Zhai; Jie-Fang Li; Lu, G.-Q.; Viehland, D.; Shujun Zhang; Shrout, T. R.
May 2005
Applied Physics Letters;5/2/2005, Vol. 86 Issue 18, p182506
Academic Journal
A quasi-ring-type magnetoelectric (ME) laminate composite consisting of a circumferentially poled piezoelectric Pb(Zn1/3Nb2/3O)3-4.5 at. % PbTiO3single-crystal ring and two circumferentially magnetized magnetostrictive TERFENOL-D rings was fabricated and found to have a giant ME voltage coefficient of 2.2 V/Oe, or equivalently a ME field coefficient of 5.5 V/cm Oe, over the frequency range of 0.5


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