Zigzag-shaped piezoelectric based high performance magnetoelectric laminate composite

Kyung Hoon Cho, Yongke Yan, Christian Folgar, Shashank Priya

Research output: Contribution to journalArticle

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Abstract

We demonstrate a 33-mode piezoelectric structure with zigzag shape for high sensitivity magnetoelectric laminates. In contrast to the 33-mode macro fiber composite (MFC), this zigzag shape piezoelectric layer excludes epoxy bonding layer between the electrode and piezoelectric materials, thereby, significantly improving the polarization degree, electromechanical coupling, and the stability of loss characteristics. The polarization degree was monitored from the change in phase angle near resonance, and the loss stability was determined from the changes in dielectric loss and rate of capacitance variation defined by (C - Cf)/Cf, where C is capacitance at a given frequency and Cf is capacitance at 100 Hz. Magnetoelectric composite with zigzag patterned piezoelectric layer was found to exhibit giant magnetoelectric response both in low frequency off-resonance region (6.75V cm-1 Oe-1 at 1 kHz) and at anti-resonance frequency (357V cm-1 Oe-1).

Original languageEnglish (US)
Article number222901
JournalApplied Physics Letters
Volume104
Issue number22
DOIs
StatePublished - Jun 2 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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