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Crystals 2014, 4(3), 262-272; doi:10.3390/cryst4030262
Article

Temperature-Dependent Phase Transition in Orthorhombic [011]c Pb(Mg1/3Nb2/3) O3-0.35PbTiO3 Single Crystal

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Received: 29 April 2014; in revised form: 9 June 2014 / Accepted: 25 June 2014 / Published: 11 July 2014
(This article belongs to the Special Issue Piezoelectric Crystals)
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Abstract: Relaxor [011]c PMN-0.35PT single crystal phase transition characteristics are investigated through various methods including variable temperature dielectric properties, X-ray diffraction, bipolar ferroelectric hysteresis loops (P-E) and electric-field-induced strain (S-E) hysteresis loops measurements. The results reveal that two phase transitions exist within the range from room temperature to 250 °C: orthorhombic (O)-tetragonal (T)-cubic (C). The O-to-T and T-to-C phase transition temperatures have been identified as 84 °C and 152 °C, respectively. Diffuseness degree of the T-to-C phase transition for the unpoled single crystal has been calculated to be 1.56, implying an intermediate state between normal and relaxor ferroelectrics. Temperature-dependent remanent polarization (Pr), coercive field (Ec), saturation polarization (Ps), hysteresis loop squareness (Rsq), and longitudinal piezoelectric constant (d* 33) are also explored to learn the details of the phase transitions. Variable temperature unipolar Suni-E hysteresis loops avail additional evidence for the microstructure change in the as-measured single crystal.
Keywords: temperature-dependent phase transition; orthorhombic [011]c PMN-0.35PT; dielectric properties; piezoelectric properties; P-E hysteresis loops; S-E hysteresis loops temperature-dependent phase transition; orthorhombic [011]c PMN-0.35PT; dielectric properties; piezoelectric properties; P-E hysteresis loops; S-E hysteresis loops
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

He, W.; Li, Q.; Yan, Q.; Luo, N.; Zhang, Y.; Chu, X.; Shen, D. Temperature-Dependent Phase Transition in Orthorhombic [011]c Pb(Mg1/3Nb2/3) O3-0.35PbTiO3 Single Crystal. Crystals 2014, 4, 262-272.

AMA Style

He W, Li Q, Yan Q, Luo N, Zhang Y, Chu X, Shen D. Temperature-Dependent Phase Transition in Orthorhombic [011]c Pb(Mg1/3Nb2/3) O3-0.35PbTiO3 Single Crystal. Crystals. 2014; 4(3):262-272.

Chicago/Turabian Style

He, Wenhui; Li, Qiang; Yan, Qingfeng; Luo, Nengneng; Zhang, Yiling; Chu, Xiangcheng; Shen, Dezhong. 2014. "Temperature-Dependent Phase Transition in Orthorhombic [011]c Pb(Mg1/3Nb2/3) O3-0.35PbTiO3 Single Crystal." Crystals 4, no. 3: 262-272.

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