Is there a spontaneous ferroelectric phase transition in 0.83PbMg1/3Nb2/3O3-0.17PbTiO3 single crystal?

Highly textured (1–x)Pb(Mg1/3Nb2/3)O3‐xPbTiO3 (PMN–xPT) piezoelectric ceramics were fabricated. It was found that [001] textured rhombohedral PMN–24%PT ceramic exhibited a quasi‐linear piezoelectric strain behavior with low hysteresis. The strain hysteresis of PMN–24%PT ceramic was reduced from 22.5% to 9% at 30 kV/cm using the texture method. Accurate displacement was generated by DC field using textured PMN–24%PT ceramic. The domain configurations in textured PMN–xPT ceramics were figured out using the chemical etching method. It was demonstrated that the quasi‐linear and low‐hysteretic strain behavior was due to a fixed domain configuration. We predict that the textured PMN–24%PT ceramic will facilitate the development of low‐voltage driving piezoelectric actuators with high precision.

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“…The reasons are clear. First, it is convenient to grow and tailor PMN–PT ceramics 21‐23 . Second, ceramics are much cheaper than single crystals.…”

Section: Introductionmentioning

confidence: 99%

A quasi‐linear piezoelectric strain behavior of [001] textured rhombohedral PMN–24%PT ceramic

et al. 2020

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“…26,27) However, there is no concrete discussion on the symmetry of Raman active modes in a paraelectric cubic phase of PMN-17PT where RFs of intermediate strength are present. 17,28,29) Although the temperature dependence of phase transition in PMN-xPT single crystals has been studied intensively, there are a limited number of reports on field induced phase transitions. As far as we know, there is no report on the change in the ratio of Raman tensor components related to local structures under external electric field.…”

Section: Introductionmentioning

confidence: 99%

Angle-resolved polarized Raman scattering on relaxor ferroelectrics with intermediate random fields

Helal

Tsukada

Svirskas

et al. 2018

Jpn. J. Appl. Phys.

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The analysis of the local structure formed by random fields in relaxor ferroelectrics is of technical and fundamental importance in understanding the origin of colossal piezoelectricity. We determined the temperature, electric field, and angular dependences of polarized Raman scattering in Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 single crystals. The dependence of the intensity of a Raman active mode on the rotation angle of a polarization plane is measured in a paraelectric cubic phase. These angular dependences are calculated theoretically by assuming the local R3m symmetry to compare the experimental data. The applied electric field in a paraelectric cubic phase suppresses the random fields and therefore the change in the ratio of Raman tensor components from the result at zero field is observed. At a sufficiently higher electric field, the angular variation changes perfectly from its zero field behavior. This indicates the appearance of tetragonal symmetry induced by an electric field.

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Is there a spontaneous ferroelectric phase transition in 0.83PbMg1/3Nb2/3O3-0.17PbTiO3 single crystal?

Cited by 2 publications

References 43 publications

A quasi‐linear piezoelectric strain behavior of [001] textured rhombohedral PMN–24%PT ceramic

A quasi‐linear piezoelectric strain behavior of [001] textured rhombohedral PMN–24%PT ceramic

Angle-resolved polarized Raman scattering on relaxor ferroelectrics with intermediate random fields

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