Magnetoelectric effects of nanoparticulate Pb(Zr0.52Ti0.48)O3-NiFe2O4 composite films
Hyejin Ryu, P. Murugavel, J. H. Lee, S. C. Chae, T. W. Noh, Yoon Seok, Oh, Hyung Jin Kim, Kee Hoon Kim, Jae Hyuck Jang, Miyoung Kim, C. Bae and, J.-G. Park
TL;DR
This study reports the fabrication and analysis of composite films made from ferroelectric Pb(Zr0.52Ti0.48)O3 and magnetic NiFe2O4 nanoparticles, demonstrating magnetoelectric effects due to stress coupling.
Contribution
It introduces a new composite film with aligned nanoparticle and matrix crystal axes, exhibiting combined ferroelectric and magnetic properties with measurable magnetoelectric effects.
Findings
Composite films show good ferroelectric and magnetic properties.
Magnetoelectric voltage coefficients measured confirm stress coupling.
Nanoparticles are structurally aligned with the ferroelectric matrix.
Abstract
We fabricated Pb(Zr0.52Ti0.48)O3-NiFe2O4 composite films consisting of randomly dispersed NiFe2O4 nanoparticles in the Pb(Zr0.52Ti0.48)O3 matrix. The structural analysis revealed that the crystal axes of the NiFe2O4 nanoparticles are aligned with those of the ferroelectric matrix. The composite has good ferroelectric and magnetic properties. We measured the transverse and longitudinal components of the magnetoelectric voltage coefficient, which supports the postulate that the magnetoelectric effect comes from direct stress coupling between magnetostrictive NiFe2O4 and piezoelectric Pb(Zr0.52Ti0.48)O3 grains.
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