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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.121  No.1410 (February) (2013)  >  pp.236-241

Journal of the Ceramic Society of Japan
<<Previous article Vol.121  No.1410 (February) (2013)   pp.236 - 241 Next article>>

Effect of facing annealing on crystallization and decomposition of Pb(Mg1/3Nb2/3)O3 thin films prepared by CSD technique using MOD solution

Takanori KIGUCHI1), Yoshihiro MISAKA2), Masahiko NISHIJIMA3), Naonori SAKAMOTO4), Naoki WAKIYA4), Hisao SUZUKI5), Toyohiko KONNO1)
1) Institute for Materials Research, Tohoku University 2) Department of Materials Science, Tohoku University 3) R and D Center for Ultra High Efficiency Nano-crystalline Soft Magnetic Material, Institute for Material Research, Tohoku University 4) Department of Materials Science and Chemical Engineering, Shizuoka University 5) Graduate School of Science and Technology, Shizuoka University

This study examined improvement of the crystallinity and the decomposition mechanism for the Pb(Mg1/3Nb2/3)O3 (PMN) thin films using chemical solution deposition (CSD) technique with a metallo-organic decomposition (MOD) solution. The PMN thin film crystallinity increases with higher annealing temperature, but improvement is slight at temperatures higher than 700°C. The facing annealing has a distinct effect on the crystallinity of PMN thin film at 650°C, which is the lowest annealing temperature examined in this study. The ratio of the pyrochlore phase has a peak at 750°C with or without the facing annealing. The facing annealing also has a distinct effect on PMN thin film decomposition at 800°C. Improvement of the crystallinity and of the homogeneity of the morphology of PMN thin films deposited at 650°C was possible under the facing condition. The decomposition occurs locally, and the residual PMN region has high crystallinity and stoichiometry. The atomic structure of the PMN lattice has a fluctuation that is characteristic in the relaxor, which is related to the polar-nano region (PNR). The chemically ordered region (COR) also appears in PMN even at a lower annealing temperature than that of bulk relaxor materials.


Keyword:
Pb(Mg1/3Nb2/3)O3, Thin film, Pyrochlore, Decomposition, Morphology, MOD

Received: August 23, 2012
Accepted: December 07, 2012 , Published online: February 01, 2013
Copyright © 2013 The Ceramic Society of Japan

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