Fatigue and Ferroelectric Properties of Bi3.25Gd0.75Ti2.97V0.03O12

Article Preview

Abstract:

Bi3.25Gd0.75Ti2.97V0.03O12 (BGTV) ceramics were prepared by solid state reaction. These samples had polycrystalline Bi-layered perovskite structure without preferred orientation, and consisted of well developed plate-like grains with random orientation. The remanent polarization and the coercive field of the BGTV were 24μC/cm2 and 65kV/cm at an electric field of 100kV/cm, respectively. These ferroelectric properties of BGTV are superior to V-doped Bi4Ti3O12 (~20μC/cm2 and 80kV/cm) and (Sr, Ta)-doped Bi4Ti3O12 (~12μC/cm2 and 71kV/cm) ceramics. In addition, the dense ceramics of BGTV could be obtained by sintering at temperatures 100─200°C lower than those of the SrBi2Ta2O9 system.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

170-173

Citation:

Online since:

December 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] J. F. Scott, C. A. P. De Araujo, Ferroelectric memories. Science. 246 (1998)1400-1404.

Google Scholar

[2] H. N. Lee, D. Hesse, N. Zakharov, et al: Ferroelectric Bi3.25La0.75Ti3O12 films of uniform a-axis orientation on silicon substrates, Science. 296 (2002) 2006-2010.

Google Scholar

[3] B. H. Park, B. S. Kang, S. D. Bu, et al: Lanthanum-substituted bismuth titanate for use in non-volatile memories, Nature. 401 (1999) 682-686.

DOI: 10.1038/44352

Google Scholar

[4] T. Kojima, T. Sakai, T, Watanabe, et al: large remanent polarization of (Bi,Nd)4Ti3O12 epitaxial thin films grown by metalorganic chemical vapor deposition, Appl. Phys. Lett. 80 (2002)2746-2750.

DOI: 10.1063/1.1468914

Google Scholar

[5] Y. Noguchi, M. Miyayama, Large remanent of polarization of vanadium-doped Bi4Ti3O12, Appl Phys Lett. 78(2001) 1903-1907.

DOI: 10.1063/1.1357215

Google Scholar

[6] Y. C. Chang, D. H. Kuo, The improvement in ferroelectric performance of (Bi3.15Nd0.85) 4Ti3O12 films By the addition of hydrogen peroxide in a spin-coating solution, Thin Solid Films. 515(2006) 1683-1687.

DOI: 10.1016/j.tsf.2006.06.024

Google Scholar

[7] U. Chon, K. B. Kim, H. M. Jang, et al: Fatigue-free samarium-modified bismuth titanate (Bi4-xSmxTi3O12) film capacitors having large spontaneous polarizations, Appl. Phys. Lett. 79 (2001) 3137-3141.

DOI: 10.1063/1.1415353

Google Scholar

[8] H. Uchida, H. Yoshikawa, I. Okada, et al: Approach for enhanced polarization of polycrystalline bismuth titanate films by Nd3+/V5+ cosubstitution, Appl. Phys. Lett. 81 (2002) 2229-2233.

DOI: 10.1063/1.1507839

Google Scholar