Crystal Growth and Ferroelectric Properties of Superlattice-Structured Bi4Ti3O12-PbBi4Ti4O15 Single Crystals

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Superlattice-structured Bi4Ti3O12- PbBi4Ti4O15 single crystals were grown, and their properties of polarization hysteresis and leakage current along the a axis were investigated. Oxidation annealing led to a marked increase in leakage current, while annealing in N2 atmosphere yielded a marked decrease in leakage current at room temperature. These results show that electron hole is the dominant carrier for the leakage current. A well-saturated polarization hysteresis with a remanent polarization of 41 μC/cm2 was observed, which is suggested to originate from the peculiar ferroelectric displacement of Bi in the Bi2O2 layers.

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Edited by:

Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki

Pages:

237-240

Citation:

M. Ikezaki et al., "Crystal Growth and Ferroelectric Properties of Superlattice-Structured Bi4Ti3O12-PbBi4Ti4O15 Single Crystals", Key Engineering Materials, Vol. 388, pp. 237-240, 2009

Online since:

September 2008

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$38.00

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