Growth and Characterization on PMN-PT-Based  Single Crystals

Tian, Jian; Han, Pengdi

doi:10.3390/cryst4030331

Cited by 15 publications

(10 citation statements)

References 24 publications

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“…30,31 Domain stripes that appear monoclinic (M A /M C ) were observed in the thinned as-grown samples. 4,9,32 Besides, the complex domain structure with abundant local electrostatic and elastic forces can also contribute significantly to the lattice distortion. 4,9,32 Besides, the complex domain structure with abundant local electrostatic and elastic forces can also contribute significantly to the lattice distortion.…”

Section: Resultsmentioning

confidence: 99%

“…[1][2][3][4] The excellent functional properties are usually associated with the morphotropic phase boundary (MPB), which separates the rhombohedral (R) and tetragonal (T) phases in the solid-solution system. 4,[8][9][10] For the as-grown PMN-xPT crystal boules, the phase structure ranges from rhombohedral to tetragonal along the growth direction because of Ti 4+ segregation during the growth period, 2,8 which gives rise to the composition inhomogeneity and the property variation. 4,[8][9][10] For the as-grown PMN-xPT crystal boules, the phase structure ranges from rhombohedral to tetragonal along the growth direction because of Ti 4+ segregation during the growth period, 2,8 which gives rise to the composition inhomogeneity and the property variation.…”

Section: Introductionmentioning

confidence: 99%

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Domain Structure Evolutions During the Poling Process for [011]‐Oriented PMN–xPT Crystals Across the MPB Region

Liu

Yan

et al. 2016

J. Am. Ceram. Soc.

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The poling effect on the [011]‐oriented (1−x)Pb(Mg1/3Nb2/3)O3‐xPbTiO3 (PMN–xPT) single crystals across the morphotropic phase boundary (MPB) was studied. The dielectric and piezoelectric properties were investigated as a function of the poling field. Domain structure evolutions during the poling process were recorded. In the unpoled PMN–xPT phase diagram, an apparent rhombohedral (R)‐tetragonal (T) phase boundary exists. With room‐temperature poling, the structure transformation sequence strongly depends on the composition. The crystal experiences a direct transition to the 2R/2T domain state in the rhombohedral or tetragonal phase field beyond the MPB region, whereas within the MPB zone it is hard to achieve the 2R/2T engineered configuration although the initial state is either rhombohedral or tetragonal as well. The piezoelectric responses of the MPB·PMN–xPTs are extraordinary weak (d33 ~ 250 pC/N), in contrast to the [011]‐oriented multidomain PMN–xPTs with ultrahigh‐piezoelectric coefficient (d33 > 1000 pC/N). We demonstrate that a slight composition variation near the MPB will significantly influence the domain evolution route and piezoelectricity for the [011]‐oriented PMN–xPT crystals. We also confirm the feasibility to realize the 2R/2T engineered domain configuration for the [011]‐oriented MPB crystals, which will extend the desired portion of the Bridgeman‐grown boules with optimal piezoelectric properties.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Domain Structure Evolutions During the Poling Process for [011]‐Oriented PMN–xPT Crystals Across the MPB Region

Liu

Yan

et al. 2016

J. Am. Ceram. Soc.

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“…The optical activity is increased for the crystals with the langasite structure [82,89]. Such giant enhancement can be stipulated by the cavity resonance effect in the nonlinear photonic crystals, by the cross-correlation between magnetic and Crystals 2017, 7, 109 6 of 29 electric properties (particularly in the BiFeO 3 films [88]), by the second-order Jahn Teller effect, and by the enhancement of piezoelectric property near the morphotropic phase boundary (MPB) [72][73][74][75][76][77].…”

Section: Correlation Between "Electro-optical and Piezoelectric Propementioning

confidence: 99%

“…A clear maximum of the upper envelope for the empirical formula of dependence "χ (2) = F(ln r)" at the values of r = 15-30 pm/V is observed here. So, the interrelationship "electro-optical coefficient, lnr-NLO susceptibility, χ (2) " is clearly related to the quadric dependence at the comparison with simple linear expression "ln r-ln d" (line 1), Figures 3 and 4. Crystals 2017, 7, 109 6 of 28 the second-order Jahn Teller effect, and by the enhancement of piezoelectric property near the morphotropic phase boundary (MPB) [72][73][74][75][76][77].…”

Section: Correlation Between "Electro-optical and Nonlinear Optical Pmentioning

confidence: 99%

“…This line has its maximum at some average "d" values. Here, at the plotting of B-spline line, some points with a high level of values χ (2) > 53 pm/V for oxide crystals ZnTiO3, PbVO3, BiGaO3, BiFeO3,β-LiNbWO6 are not taken into account because of the absence of their data on the piezoelectric coefficient [68,[76][77][78][79][84][85][86]. In Figure 5, the maximal values of χ (2) are plotted for oxide crystals PbVO3 (53 pm/V, C4v) [68], β-LiWNbO6 (χ (2) ≈ 70 pm/V, C3v) [78][79][80][81][82][83][84][85][86][87][88][89], and our estimation of the values χ (2) for crystals ZnTiO3 (C3v) on the last Ps data [76] is also taken into account But, the higher χ (2) -level for the B-spline line very well corresponds to the χ (2) -level of these points.…”

Section: Correlation Between "Piezoelectric and Nonlinear Optical Promentioning

confidence: 99%

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Comparative Interrelationship of the Structural, Nonlinear-Optical and Other Acentric Properties for Oxide, Borate and Carbonate Crystals

Kidyarov

2017

Crystals

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Abstract:The structure and the maximal nonlinear optical (NLO) susceptibility χ (2) are tabulated for more 700 acentric binary oxides, 220 crystals of simple, binary and complex borates and for the same set of 110 carbonates, tartrates, formates, oxalates, acetates and fluoride-carbonates used in ultraviolet and deep ultraviolet optoelectronics. According to the chemical formula, the structural symbols of these crystals have been plotted on the plane of two minimal oxide bond lengths (OBL). It is shown that acentric crystals are positioned on such plane inside the vertical, horizontal and slope intersected ellipses of "acentricity". The oxide and borate crystals with moderate NLO susceptibility are found in the central parts of these ellipses intersection and, with low susceptibility, on top, at the bottom and border of the ellipses rosette. The nonpolar fluoride-carbonate crystals with high NLO susceptibility are found in the curve-side rhombic parts of the slope ellipse of "acentricity". The unmonotonous fuzzy dependence "χ (2) " on the OBL of these crystals is observed, and their clear-cut taxonomy on compounds with π-or σ-oxide bonds is also established. It is shown that the correlations of χ (2) with other acentric properties are nonlinear for the whole set of the oxide crystals having their clear maximum at a certain value of the piezoelectric or electro-optic coefficient. The correlation "hardness-thermoconductivity-fusibility" is plotted for oxide crystals, part of which is used at the creation of self-frequency-doubling solid state lasers.

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