Magnetoelectric properties of the lead-free cofired BaTiO3 - (Ni0.8Zn0.2)Fe2O4 bilayer composite

Rashed A. Islam, Shashank Priya

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Abstract

In this letter the authors report the ferroelectric and magnetoelectric (ME) properties of the cofired bilayer composite targeting low cost lead-free magnetic field sensor. The ME response was characterized as a function of the magnetic field direction and as a function of the dc bias. It was found that when the ac magnetic field is applied at 90° to the ferroelectric polarization axis of the sample, a ME response of 72 mVcm Oe was obtained without any dc bias. The magnitude of the ME coefficient reached the saturation at dc bias of 1000 Oe having magnitude of 152 mVcm Oe. The scanning electron microscopy analysis showed the presence of clear interface boundary between the strained BaTi O3 (Ni0.8 Zn0.2) Fe2 O4 region.

Original languageEnglish (US)
Article number152911
JournalApplied Physics Letters
Volume89
Issue number15
DOIs
StatePublished - Oct 20 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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