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.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)