Tunable features of magnetoelectric transformers

Shuxiang Dong; Junyi Zhai; Shashank Priya; Jie-Fang Li; Dwight Viehland

doi:10.1109/TUFFC.2009.1152

Tunable features of magnetoelectric transformers

IEEE Trans Ultrason Ferroelectr Freq Control. 2009 Jun;56(6):1124-7. doi: 10.1109/TUFFC.2009.1152.

Authors

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

PMID: 19574118
DOI: 10.1109/TUFFC.2009.1152

Abstract

We have found that magnetostrictive FeBSiC alloy ribbons laminated with piezoelectric Pb(Zr,Ti)O(3) 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 <or= H(dc) <or= 5 Oe. The features include 1) a high voltage gain of -55 <or= V(gain) <or= 55; and 2) a large current-to-voltage conversion of -2000 <or=alpha(I-V) <or= 2000 (V/A). The tunable transformer features can be attributed to large changes in the piezomagnetic coefficient and permeability of the magnetostrictive phase under H(dc).

Publication types

Letter
Research Support, Non-U.S. Gov't

MeSH terms

Computer-Aided Design
Electronics / instrumentation*
Energy Transfer*
Equipment Design
Equipment Failure Analysis
Magnetics / instrumentation*
Reproducibility of Results
Sensitivity and Specificity