Tunable features of magnetoelectric transformers

Shuxiang Dong, Junyi Zhai, Shashank Priya, Jie Fang Li, Dwight Viehland

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

We have found that magnetostrictive FeBSiC alloy ribbons laminated with piezoelectric Pb(Zr,Ti)O3 fiber can act as a tunable transformer when driven under resonant conditions. These composites were also found to exhibit the strongest resonant magnetoelectric voltage coefficient of 750 V/ cm-Oe. The tunable features were achieved by applying small dc magnetic biases of -5 ≤ H dc ≤ 5 Oe. The features include 1) a high voltage gain of -55 ≤ V gain 55; and 2) a large current-to-voltage conversion of -2000 αI-V ≤ 2000 (V/A). The tunable transformer features can be attributed to large changes in the piezomagnetic coefficient and permeability of the magnetostrictive phase under Hdc.

Original languageEnglish (US)
Article number5075093
Pages (from-to)1124-1127
Number of pages4
JournalIEEE transactions on ultrasonics, ferroelectrics, and frequency control
Volume56
Issue number6
DOIs
StatePublished - Jun 2009

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

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