Title :
Ferroelectric and magnetic behavior of Pb(Zr0.52Ti0.48)O3 based magnetoelectric nanocomposite films
Author :
Huang, W. ; Zhou, L.X. ; Zhu, J. ; Wei, X.H. ; Zhang, Y. ; Li, Y.R.
Author_Institution :
State Key Lab. of Electron. Thin Films & Integrated Devices, Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Magnetoelectric (ME) nanocomposite materials have attracted much interest due to the coupling among the electric, magnetic, and elastic order parameters and the ME effect, In this paper, the ¿sandwich¿ structure ME composite films of PZT/ NiFe2O4 (NFO)/PZT and PZT/CoFe2O4(CFO)/PZT were epitaxially grown on SrRuO3/STO substrates by pulsed laser deposition (PLD). The effects of strain on the microstructures, ferroelectric and magnetic properties in these thin films with few nanometer thickness have systematically been studied. The results show that the ferroelectric properties of these nanocomposite films are suppressed by inducing the magnetic layer. Compared with PZT/CFO/PZT, much improved ferroelectric properties with an out-of-plane polarization (2Pr) of 42 ¿C/cm2 and electric coercivity field of 400 kV/cm were obtained in PZT/NFO/PZT composite film.
Keywords :
cobalt compounds; dielectric polarisation; elasticity; epitaxial growth; ferrimagnetic materials; ferroelectric coercive field; ferroelectric thin films; lead compounds; magnetic multilayers; magnetic thin films; magnetoelectric effects; nanocomposites; nickel compounds; pulsed laser deposition; strontium compounds; zirconium compounds; PZT-CoFe2O4-PZT; PZT-NiFe2O4-PZT; Pb(Zr0.52Ti0.48)O3; SrRuO3; SrTiO3; elastic order parameters; electric coercivity field; electric parameters; epitaxial growth; ferrimagnetic material; ferroelectric behavior; magnetic parameters; magnetoelectric nanocomposite films; microstructures; order parameter coupling; out-of-plane polarization; pulsed laser deposition; sandwich structure; strain effects; thin films; Composite materials; Ferroelectric films; Ferroelectric materials; Magnetic films; Magnetic materials; Magnetic properties; Magnetoelasticity; Nanostructured materials; Optical coupling; Pulsed laser deposition;
Conference_Titel :
Nanoelectronics Conference (INEC), 2010 3rd International
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-3543-2
Electronic_ISBN :
978-1-4244-3544-9
DOI :
10.1109/INEC.2010.5424587
