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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.121  No.1416 (August) (2013)  >  pp.614-618

Journal of the Ceramic Society of Japan
<<Previous article Vol.121  No.1416 (August) (2013)   pp.614 - 618 Next article>>

Synthesis and characterization of multiferroic Pb(Zr,Ti)O3/CoFe2O4/Pb(Zr,Ti)O3 layered composite thin films by chemical solution deposition

Yoshikatsu KAWABATA1), Wataru SAKAMOTO1), Kenji YOSHIDA1), Takashi IIJIMA2), Makoto MORIYA1), Toshinobu YOGO1)
1) Division of Nanomaterials Science, EcoTopia Science Institute, Nagoya University 2) National Institute Advanced Industrial Science and Technology (AIST)

Multiferroic Pb(Zr,Ti)O3/CoFe2O4/Pb(Zr,Ti)O3 layered thin films were synthesized on Pt/TiOx/SiO2/Si substrates by chemical solution deposition using metal–organic precursor solutions. Layered composite films composed of polycrystalline perovskite Pb(Zr0.52Ti0.48)O3 and spinel CoFe2O4 phases with no secondary phases were successfully synthesized by controlling conditions such as the coating process. The layered structure of the Pb(Zr0.52Ti0.48)O3/CoFe2O4/Pb(Zr0.52Ti0.48)O3 was confirmed by scanning electron microscope observations. These layered films exhibited sufficiently high insulating properties, as well as ferroelectric polarization (P)-electric field (E) and ferromagnetic magnetization (M)-magnetic field (H) hysteresis loops at room temperature. Typical ferroelectric oxide strain behavior was observed under a driving AC (alternate current) field. Furthermore, due to magnetoelectric interaction between the ferroelectric and ferromagnetic (magnetostrictive) layers, the ferroelectric properties of the films altered under an applied magnetic field (approximately 0.5 T).


Keyword:
Pb(Zr,Ti)O3, CoFe2O4, Chemical solution deposition, Layered composite film, Electrical properties, Magnetic properties

Received: April 01, 2013
Accepted: May 16, 2013 , Published online: August 01, 2013
Copyright © 2013 The Ceramic Society of Japan

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