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Applied Physics Letters / Volume 96 / Issue 22 / DIELECTRICS AND FERROELECTRICITY

Appl. Phys. Lett. 96, 222903 (2010); http://dx.doi.org/10.1063/1.3447372 (3 pages)

Ferroelectric transition of Aurivillius compounds Bi5Ti3FeO15 and Bi6Ti3Fe2O18

J.-B. Li1, Y. P. Huang1, G. H. Rao1, G. Y. Liu1, J. Luo1, J. R. Chen1, and J. K. Liang1,2

1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
2International Centre for Materials Physics, Academia Sinica, Shenyang 110016, China

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(Received 7 April 2010; accepted 13 May 2010; published online 2 June 2010)

Single-phase Bi5Ti3FeO15 and Bi6Ti3Fe2O18 ceramics have been synthesized by solid state reaction. The ferroelectric transition of the compounds was studied by differential scanning calorimetry, high-temperature x-ray diffraction, and temperature-dependent dielectric measurements. Two solid-state structural transitions were observed in both compounds, one is the orthorhombic↔tetragonal transition (ferroelectric transition) at 1021 K for Bi5Ti3FeO15 and 973 K for Bi6Ti3Fe2O18, and the other is accompanied by an abrupt lattice expansion of the tetragonal phase at about 1110 K for Bi5Ti3FeO15 and about 1090 K for Bi6Ti3Fe2O18.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

bioceramics, bismuth compounds, differential scanning calorimetry, ferroelectric ceramics, ferroelectric transitions, titanium compounds, X-ray diffraction

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3447372

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    H. Hervoches, J. T. S. Irvine, and P. Lightfoot, Phys. Rev. B 64, 100102(R) (2001).

    A. Snedden, C. H. Hervoches, and P. Lightfoot, Phys. Rev. B 67, 092102 (2003).


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