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 language | English (US) |
|---|---|
| Article number | 5075093 |
| Pages (from-to) | 1124-1127 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control |
| Volume | 56 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 2009 |
| Externally published | Yes |
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