Circumferential-mode, quasi-ring-type, magnetoelectric laminate composite-a highly sensitive electric current andor vortex magnetic field sensor

Shuxiang Dong, John G. Bai, Junyi Zhai, Jie Fang Li, G. Q. Lu, D. Viehland, Shujun Zhang, T. R. Shrout

Research output: Contribution to journalArticle

89 Scopus citations

Abstract

A quasi-ring-type magnetoelectric (ME) laminate composite consisting of a circumferentially poled piezoelectric Pb (Zn13 Nb23 O)3 -4.5 at. % PbTiO3 single-crystal ring and two circumferentially magnetized magnetostrictive TERFENOL-D rings was fabricated and found to have a giant ME voltage coefficient of 2.2 VOe, or equivalently a ME field coefficient of 5.5 Vcm Oe, over the frequency range of 0.5<f< 105 Hz. This circumferential-mode quasiring ME laminate can detect ac currents (noncontact) as small as 10-7 A, andor a vortex magnetic field as small as 6× 10-12 Tesla. In addition, we demonstrated current sensing capability of the quasiring laminate in a power electronics module.

Original languageEnglish (US)
Article number182506
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number18
DOIs
StatePublished - May 2 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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