Unique Piezoelectric Properties of the Monoclinic Phase in Pb(Zr,Ti)O_{3} Ceramics: Large Lattice Strain and Negligible Domain Switching

Physical Review Letters
Longlong FanXianran Xing

Abstract

The origin of the excellent piezoelectric properties at the morphotropic phase boundary is generally attributed to the existence of a monoclinic phase in various piezoelectric systems. However, there exist no experimental studies that reveal the role of the monoclinic phase in the piezoelectric behavior in phase-pure ceramics. In this work, a single monoclinic phase has been identified in Pb(Zr,Ti)O_{3} ceramics at room temperature by in situ high-energy synchrotron x-ray diffraction, and its response to electric field has been characterized for the first time. Unique piezoelectric properties of the monoclinic phase in terms of large intrinsic lattice strain and negligible domain switching have been observed. The extensional strain constant d_{33} and the transverse strain constant d_{31} are calculated to be 520 and -200  pm/V, respectively. These large piezoelectric coefficients are mainly due to the large intrinsic lattice strain, with very little extrinsic contribution from domain switching. The unique properties of the monoclinic phase provide new insights into the mechanisms responsible for the piezoelectric properties at the morphotropic phase boundary.

References

Sep 16, 2000·Physical Review Letters·R GuoG Shirane
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Dec 12, 2001·Physical Review Letters·Y KuroiwaM Sakata
Aug 26, 2003·Physical Review Letters·Ningdong HuangXiao-Wen Zhang
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Aug 7, 2012·Angewandte Chemie·Kengo OkaMasaki Azuma

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Citations

Jul 4, 2017·Physical Chemistry Chemical Physics : PCCP·Yilin WangXianran Xing
Jan 9, 2020·Chemical Society Reviews·Xiang LvJiagang Wu
Jul 22, 2018·Physical Chemistry Chemical Physics : PCCP·Xiang LvDingquan Xiao
Jan 22, 2021·ACS Applied Materials & Interfaces·Zhao PanMasaki Azuma
Oct 11, 2017·Journal of the American Chemical Society·Zhao PanXianran Xing

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