Abstract
The dielectric properties of Pb(Zn1/3Nb2/3) O3-PbZrO3−PbTiO3 (PZN-PZ-PT) system near the rhombohedral/tetragonal morphotropic phase boundary (MPB) are carefully studied in this paper. It is found that, for all samples, the curves around the temperatures of dielectric permittivity peak show the characteristics of diffuse phase transition. The change in PbZrO3/PbTiO3 ratio has much influence on the dielectric properties of the samples. The extent of diffuse phase transition increases with the increasing Zr/Ti ratio. The samples in rhombohedral region have typical diffuse phase transition in the temperature range measured. However, for the samples with tetragonal symmetry, a spontaneous normal ferroelectric-relaxor phase transition exists at temperature lower than that of permittivity peak. This normal ferroelectric-relaxor phase transition is confirmed by the experiment of thermally driven current. The analysis of TEM reveals that the samples in tetragonal region show a 90% macrodomain structure, while the samples in rhombohedral region have the configuration of microdomain structure.
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Shrout, T. R., Halliyal, A., Preparation of lead-based ferroelectric relaxors for capacitors, Am. Ceram. Soc. Bull. 1987, 66(4): 704.
Cross, L. E., Jang, J. S., Newnham, R. E. et al., Large electrostrictive effects in relaxor ferroelectrics, Ferroelectrics, 1980, 23: 187.
Uchino, K., Electrostrictive actuators: materials and applications, Am. Ceram. Soc. Bull., 1986, 65(4): 647.
Chen, J., Chan, H. M., Harmer, M. P., Ordering structure and dielectric properties of undoped and La/Na-doped Pb (Mg1/3Nb2/3)O3, J. Am. Ceram. Soc., 1989, 72(4): 593.
Wu Zhongli, Gui Zhilun, Li Longtu et al., A size estimation of ordered domains in Pb(Mg1/3 Nb2/3)O3 ceramics, J. Appl. Phys., 1992, (72): 5822.
Chu, F., Reaney, I. M., Setter, N., Spontaneous (zero-field) relaxor-to-ferroelectric phase transition in disordered Pb (Sc1/2Nb1/2)O3, J. Appl. Phys., 1995, 77(4): 1671.
Chu, F., Setter, N., Tagantsev, A. K., The spontaneous relaxor-ferroelectric transition of Pb (Sc1/2Nb1/2)O3, J. Appl. Phys., 1993, 74(8): 5129.
Li, J. F., Dai, X., Chow, A. et al., Polarization switching mechanisms and electromechanical properties of La-modified lead zirconate titanate ceramics, J. Mater. Res., 1995, 10(4): 926.
Dai, X., Digiovanni, A., Viehland, D., Dielectric properties of tetragonal lanthanum modified lead zirconate titanate ceramics, J. Appl. Phys., 1993, 74(5): 3399.
Yoon, M. S., Jang, H. M., Relaxor-normal ferroelectric transition in tetragonal-rich field of Pb(Ni1/3Nb2/3)O3-PbTiO3-PbZrO3 system, J. Appl. Phys., 1995, 77(8): 3391.
Yoon, M. S., Jang, H. M., Kim, S., Spontaneous micro-macro ferroelectric domain switching in PbZrO3-doped Pb(Ni1/3Nb2/3)O3-PbTiO3, system, Jpn. J. Appl. Phys., 1995, 34(4A): 1916.
Robert, G., Demartin, M., Damjanovic, D., Phase diagram for the 0.4Pb(Ni1/3Nb2/3)O3-0.6 Pb(ZrTi)O3 solid solution in the vicinity of a morphotropic phase boundary, J. Am. Ceram. Soc., 1998, 81(3): 749.
Jiang Xiangping, Fang Jinwen, Chen Daren et al., Study on the diffuse phase transition of Pb(Zn1/3Nb2/3)O3-PbZrO3-PbTiO3 solid solution near the morphotropic phase boundary, Acta Physica Sinica, 2000, 49(4): 802.
Randall, C. A., Bhalla, A. S., Shrout, T. R. et al., Classification and consequences of complex lead perovskite ferro-electrics with regard to B-site cation order, J. Mater. Res., 1990, 5(4): 829.
Rdonof, G. S., Modern Physics (in Russian), Moscow: Moscow University Press.
Samara, G. A., Pressure-induced crossover from long-to-short-order in compositionally disordered soft mode ferroelectrics, Phys. Rev. Lett., 1996, 77(2): 314.
Cross, L. E., Relaxor ferroelectrics, Ferroelectrics, 1987, 76: 241.
Thomas, N. W., A new framework for understadning relaxor ferroelectrics, J. Phys. Chem. Solids, 1990, 51: 1419.
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Jiang, X., Fang, J., Zeng, H. et al. Dielectric properties of Pb (Zn1/3 Nb2/3) O3−PbZrO3−PbTiO3 solid solution near morphotropic phase boundary. Sci. China Ser. E-Technol. Sci. 45, 65–73 (2002). https://doi.org/10.1360/02ye9008
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DOI: https://doi.org/10.1360/02ye9008