[1] Y. Xu, Ferroelectrics and Piezoelectric Materials (Science Press, Beijing 1978).

[2] X. Hu, C. Huang, Y. Tai, and Y. Cai, Acta Photon. Sin. (in Chinese) 34, 1685 (2005).

[3] J. Zuo, Erosions Data Manual (Chemical Industrial Press, Beijing 1982).

[4] P. F. Baude, C. Ye, and D. L. Polla, in Proceedings of Materials Research Society Symposium 310, 139 (1993).

[5] S. Mancha, M. Ivey, R. Carter, and G. Lavigne, 90 IEEE 7 Int Symp Appl Ferroelectr 737 (1992).

[6] Q. Liu, Y. Lin, X. Wu, L. Zhang, and X. Yao, Piezoelectric and Acousto-Optic (in Chinese) 20, 411 (1998).

[7] S. Ezhilvalavan and V. D. Samper, Appl. Phy. Lett. 86, 072901 (2005).

[8] W. Liu, J. Ko, and W. Zhu, Materi. Sci. Lett. 19, 2263 (2000).

[9] D. Xia, M. Liu, Y. Zeng, S. Chen, and X. Zhao, Piezoelectric & Acoustooptics 26, 196 (2004).