期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 99, 期 6, 页码 1878-1880出版社
WILEY
DOI: 10.1111/jace.14231
关键词
ferroelectricity/ferroelectric materials; lead lanthanum zirconate titanate; phase transformations
资金
- National Natural Science Foundation of China [51202273, 11304334]
- Science and Technology Commission of Shanghai Municipality, China [14DZ2261000]
- National Basic Research Program of China(973 Program) [2014CB660812]
The hysteresis behaviors and phase characteristics of Pb0.97La0.02(Zr0.90Sn0.025Ti0.075)O-3 (PLZST) ceramics were investigated in this work. A single mini hysteresis loop at 3 kV/mm with the maximum polarization (P-max) of 8.3 mu C/cm(2) and triple hysteresis loops at 6.6 kV/mm were observed, which indicates the coexistence of rhombohedral ferroelectric phase and tetragonal antiferroelectric phase. The X-ray Diffraction patterns and dielectric temperature spectra both demonstrate this coexistence. Moreover, the hysteresis loops with increasing temperature indicated that a ferroelectric-antiferroelectric phase transition occurred at about 60 degrees C. These phenomena would be useful for understanding the domain evolution during ferroelectric and antiferroelectric phase transition.
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