Monday, 11 October 2004 - 4:20 PM

This presentation is part of : Active Materials

Resonance Magnetoelectric Effect and Voltage Gain Effect in TERFENOL-D/PZT Laminates

Shuxiang Dong, Materials Science & Engineering, Virginia tech, Materials Science & Engineering, Virginia tech, Blacksburg, VA 24061

We have found that laminate composites consisting of longitudinally magnetized magnetostrictive Terfenol-D and longitudinally poled piezoelectric Pb(Zr,Ti)O3 layers have dramatically enhanced magneto-electric (ME) effects when driven near resonance. The maximum induced ME voltage at resonance was ~10 Vp/Oe, which is ~102x higher than previous reports at sub-resonant frequencies, see Fig.1. Furthermore, we have discovered that this ME laminate shows an extreme high voltage gain effect under resonance drive: the induced voltage from this laminate is about 300 times higher than input voltage for magnetic excitation, see Fig.2. The resonance ME and ME voltage gain effects may have importance for power device applications.

Contact Author: Shuxiang Dong 306 Holden Hall, Materials Science & Engineering, Virginia Tech, Blacksburg, VA 24061, USA. Phone: 540-231-2327, Fax: 540-231-8919, E-mail:

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