Enhanced magnetoelectric effect in longitudinal-longitudinal mode laminate with cofired interdigitated electrodes

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Abstract

In this letter, we describe a low-temperature cofiring technique to embed the interdigitated electrodes (IDE) inside the piezoelectric ceramic layer to achieve longitudinally (L) poled magnetoelectric (ME) laminates. The ME voltage coefficient of this L-L mode composite was found to be 4.41 V cm-1 Oe-1 at 1 kHz, which is 340% higher than that of L-T (transversal) mode. IDE based longitudinal poling and piezoelectric response was evaluated by impedance changes and piezoresponse force microscopy, illustrating the effect of inactive/ineffective zone in the range beneath and above the fingers with vanishing fields. At an electric field of 50 V/cm, the composite was found to generate magnetic field on the order of 175 μG at 1 kHz.

Original languageEnglish (US)
Article number032911
JournalApplied Physics Letters
Volume104
Issue number3
DOIs
StatePublished - Jan 20 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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