Additional dc magnetic field response of magnetostrictive/piezoelectric magnetoelectric laminates by Lorentz force effect

Yanmin Jia, Yanxue Tang, Xiangyong Zhao, Haosu Luo, Siu Wing Or, Helen Lai Wa Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

19 Citations (Scopus)

Abstract

We have discovered that traditional long-type magnetoelectric laminate composite of magnetostrictive Tb1-x Dyx Fe2-y and piezoelectric materials possesses additional ability of detecting dc magnetic field, using the product effect of the Lorentz force effect from Terfenol-D metal strips in dc magnetic field applied with an ac electrical current and the piezoelectric effect from piezoelectric material. The output voltage between the two faces of piezoelectric (1-x) Pb (Mg13 Nb23) O3 -xPbTi O3 single crystal shows a good linear response to applied dc magnetic field of 100-1200 Oe under different ac electrical current inputs (0.4-200 mA). The magnetoelectric coefficient is about ∼64.1 mVT A. The additional dc magnetic field response of magnetostrictive/piezoelectric magnetoelectric laminates driven by Lorentz force makes this composite hopeful for application in coil-free ac/dc magnetic-sensitive sensors. At the same time, for this composite, the additional ability will not affect the primal ability for detecting ac magnetic field.
Original languageEnglish
Article number126102
JournalJournal of Applied Physics
Volume100
Issue number12
DOIs
Publication statusPublished - 1 Dec 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this