TY - JOUR

T1 - Phase evolution and strong temperature-dependent electrostrictive effect in (1−x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 solid solutions

AU - Huang, Yunyao

AU - Zhang, Leiyang

AU - Jing, Ruiyi

AU - Shi, Wenjing

AU - Alikin, Denis

AU - Shur, Vladimir

AU - Wei, Xiaoyong

AU - Jin, Li

N1 - This work was financially supported by the National Natural Science Foundation of China (grant number: 52172127 and 52261135548), the Key Research and Development Program of Shaanxi (program number: 2022KWZ‐22). The research was made possible by Russian Science Foundation (project number: 23‐42‐00116). The equipment of the Ural Center for Shared Use “Modern nanotechnology” Ural Federal University (reg. number: 2968), which is supported by the Ministry of Science and Higher Education RF (project number: 075‐15‐2021‐677), was used. The SEM work was done at International Center for Dielectric Research (ICDR), Xi'an Jiaotong University, Xi'an, China.

PY - 2023/8/1

Y1 - 2023/8/1

N2 - (1−x)Pb(Mg1/3Nb2/3)-xPbTiO3 (PMN-xPT) ceramics with x ranging from 0.1 to 0.3 were synthesized by solid-state reaction method. X-ray diffraction, dielectric and ferroelectric property characterizations were systematically investigated. As x rises, the PMN-xPT transitions from a cubic to a rhombohedral phase, resulting in an enhancement in ferroelectricity. Our findings show that the electrostrain and longitudinal electrostrictive coefficient Q33 both increase and then decrease within a critical region located between the depolarization temperature TFR and Tm (corresponding to the maximum permittivity), demonstrating strong temperature-dependent characteristics. In x = 0.2, the maximum Q33 of 0.0361 m4/C2 is obtained, and a phase diagram of studied system is built. Our findings not only shed light on the phase evolution in this system but also reveal a strong temperature-dependent electrostrictive effect that can be used to improve electrostrains in PMN-based solid solutions if the critical region can be regulated to a suitable temperature region using engineering strategies.

AB - (1−x)Pb(Mg1/3Nb2/3)-xPbTiO3 (PMN-xPT) ceramics with x ranging from 0.1 to 0.3 were synthesized by solid-state reaction method. X-ray diffraction, dielectric and ferroelectric property characterizations were systematically investigated. As x rises, the PMN-xPT transitions from a cubic to a rhombohedral phase, resulting in an enhancement in ferroelectricity. Our findings show that the electrostrain and longitudinal electrostrictive coefficient Q33 both increase and then decrease within a critical region located between the depolarization temperature TFR and Tm (corresponding to the maximum permittivity), demonstrating strong temperature-dependent characteristics. In x = 0.2, the maximum Q33 of 0.0361 m4/C2 is obtained, and a phase diagram of studied system is built. Our findings not only shed light on the phase evolution in this system but also reveal a strong temperature-dependent electrostrictive effect that can be used to improve electrostrains in PMN-based solid solutions if the critical region can be regulated to a suitable temperature region using engineering strategies.

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U2 - 10.1111/jace.19104

DO - 10.1111/jace.19104

M3 - Article

VL - 106

SP - 4709

EP - 4722

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

SN - 0002-7820

IS - 8

ER -