Abstract
Thin films of lanthanum substituted bismuth titanate, Bi4−xLaxTi3O12 (BLTx), were prepared by chemical solution deposition. Crystallized BLTx films were obtained by rapid thermal annealing at a temperature as low as 650 °C. Structural and electrical characteristics of crystalline BLTx films were studied as functions of La composition. Structure characterization was conducted by x-ray diffraction and Raman spectroscopy. The lowest lattice vibration mode around 116 cm−1 showed softening with increasing lanthanum composition. Surface morphology of BLTx films were recorded by scanning electron microscopy. BLTx films have saturated hysteresis loops with remnant polarization of 9.7, 12.3, and 4.5 μC/cm2, respectively, for x = 0.50, 0.75, and 1.00 films. BLT0.75 films showed fatigue-free behavior over 250 kV/cm, 50 kHz cycling, which could be compared with that of SrBi2Ta2O9 thin films. Fatigue resistance decrease at lower cycling field. The field dependence of fatigue property was discussed briefly in terms of competition between domain pinning and field-assisted unpinning.
Similar content being viewed by others
References
J.F. Scott and C.A. Paz de Araujo, Science 246, 1400 (1989).
D.J. Taylor, R.E. Jones, P. Zurcher, P. Chu, Y.T. Lii, B. Jiang, and S.J. Gillespie, Appl. Phys. Lett. 68, 2300 (1996).
C.A. Paz de Araujo, J.D. Cuchiaro, L.D. McMillan, M.C. Scott, and J.F. Scott, Nature 374, 12 (1995).
J.F. Scott, Ferroelectric Rev. 1, 1 (1998).
B.H. Park, B.S. Kang, S.D. Bu, T.W. Noh, J. Lee, and W. Jo, Nature 401, 682 (1999).
J. Robertson, C.W. Chen, W.L. Warren, C.D. Gutleben, Appl. Phys. Lett. 69, 1704 (1995).
H.N. Al-Shareef, D. Dimos, T.J. Boyle, W.L. Warren, and B.A. Tuttle, Appl. Phys. Lett. 68, 690 (1996).
D. Dimos, H.N. Al-Shareef, W.L. Warren, and B.A. Tuttle, J. Appl. Phys. 80, 1682 (1994).
D. Wu, A.D. Li, H.Q. Ling, T. Yu, Z.G. Liu, and N.B. Ming, Appl. Phys. Lett. 76, 2208 (2000).
T.C. Chen, T.K. Li, X.B. Zhang, S.B. Desu, J. Mater. Res. 12, 1569 (1997).
P.C. Joshi and S.B. Krupanidhi, J. Appl. Phys. 72, 5827 (1992).
P.C. Joshi and S.B. Krupanidhi, Appl. Phys. Lett. 62, 1928 (1993).
X.F. Du and I.W. Chen, J. Am. Ceram. Soc. 81, 3253 (1998).
Y. Katagiri, H. Nasu, J. Matsuka, and K. Kamiya, J. Am. Ceram. Soc. 77, 673 (1994).
G. Guzman, P. Barboux, and J. Perriere, J. Appl. Phys. 77, 635 (1995).
J.S. Wright and L.F. Francis, J. Mater. Res. 8, 1712 (1993).
Aidong Li, Di Wu, Chuanzhen Ge, Peng Lü, Wenhui Ma, Mingsheng Zhang, Cunyi Xu, Jian Zuo, and Naiben Ming, J. Appl. Phys. 85, 2146 (1999).
Di Wu, Aidong Li, Chuanzhen Ge, Peng Lü, Chunyi Xu, Jian Xu, and Naiben Ming, Thin Solid Films 322, 323 (1998).
D.S. Fu, T. Ogawa, H. Suzuki, K. Ishikawa, Appl. Phys. Lett. 77, 1532 (2000).
P.R. Graves, G. Hua, S. Myhra, and J.G. Thompson, J. Solid State Chem. 114, 112 (1995).
I. Taguchi, A. Pignolet, L. Wang, M. Proctor, F. Levy, and P.E. Schmid, J. Appl. Phys. 73, 394 (1993).
S. Kojima, R. Imaizumi, S. Hamazaki, and M. Takashige, Jpn. J. Appl. Phys. 33 (Pt. 1), 5559 (1994).
H. Idink, V. Srikanth, W.B. White, and E.C. Subbarao, J. Appl. Phys. 76, 1819 (1994).
T. Takenaka and K. Sakata, Ferroelectrics 38, 769 (1981).
P.J. Klar and T. Rentschler, Solid State Commun. 103, 341 (1997).
K. Srinivas and A.R. James, J. Appl. Phys. 86, 3885 (1999).
B.H. Park, S.J. Hyun, S.D. Bu, and T.W. Noh, Appl. Phys. Lett. 74, 1907 (1999).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Wu, D., Li, A., Zhu, T. et al. Processing- and composition-dependent characteristics of chemical solution deposited Bi4−xLaxTi3O12 thin films. Journal of Materials Research 16, 1325–1332 (2001). https://doi.org/10.1557/JMR.2001.0185
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/JMR.2001.0185