Phase diagrams of the system of solid solutions Pb1-x(Li1/2La1/2)x(Zr1-yTy)O3in the vicinity of FE-AFE phase stability boundary 3. Effects caused by the coexistence of FE and AFE phases

Ishchuk, V. M.; Ivashkova, Natalia; Матвеев, С. В.; Sobolev, V. L.; Spiridonov, N. A.; Belichenko, O. A.; Gorishniy, Yu. V.

doi:10.1080/01411599508200383

Cited by 11 publications

(16 citation statements)

References 6 publications

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“…Then the discussed two-phase FE+AFE domains appear at cooling. This fact is confirmed by the results of X-ray studies [15]. At the interphase FE-AFE boundary, separation of the elements forming the crystal lattice of the given substance (and segregations birth) is initiated due to the difference in their ionic radii.…”

Section: Peculiarities Of "Composition-temperature" Phase Diagrams Ofsupporting

confidence: 69%

“…Our results [4,7,15] allow to propose a mechanism of "pressing out" paraelectric PT towards the low-temperature region with its simultaneous diffuseness. The decisive factor which defines the said PT behavior is the above-considered mechanism of ions separation at the interphase FE-AFE boundary inside the two-phase domains.…”

Section: Peculiarities Of "Composition-temperature" Phase Diagrams Ofmentioning

confidence: 80%

“…One does not need to do that using the model suggested here. As shown in [7,15] the structure of coexisting domains of the FE and AFE phases exists both above T m and below T m . The X-ray studies carried out above T m demonstrated that the coexisting domains of the FE and AFE phases constitute the two-phase FE+AFE domain.…”

Section: Glass-like Behavior Of Perovskite Oxides With Coexisting Of mentioning

confidence: 96%

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Peculiarities of Ferro-Antiferroelectric Phase Transitions 9. Can the Substances with Coexisting Ferroelectric and Antiferroelectric Phases Mimic the Dipole-Glass Behavior?

Ishchuk¹,

Sobolev

2011

Ferroelectrics

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We demonstrate that the substances with coexisting ferroelectric and antiferroelectric phases possess properties characteristic for the "dipole glasses". Possible phase diagrams of such substances are discussed. Main attention is paid to the long-time relaxation of physical characteristics of these compounds after their thermodynamic equilibrium was disturbed by external influences. The long-time relaxation and the pronounced frequency dependence of parameters (for example, dependence of characteristics on the frequency of measuring field) are the main features due to which these systems are classified as dipole glasses. Our main purpose is to call attention to the fact that one has to be cautious during the interpretation of experimental results in substances with inhomogeneous states of coexisting domains of ferroelectric and antiferroelectric phases.

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Section: Peculiarities Of "Composition-temperature" Phase Diagrams Ofsupporting

confidence: 69%

Section: Peculiarities Of "Composition-temperature" Phase Diagrams Ofmentioning

confidence: 80%

Section: Glass-like Behavior Of Perovskite Oxides With Coexisting Of mentioning

confidence: 96%

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Peculiarities of Ferro-Antiferroelectric Phase Transitions 9. Can the Substances with Coexisting Ferroelectric and Antiferroelectric Phases Mimic the Dipole-Glass Behavior?

Ishchuk¹,

Sobolev

2011

Ferroelectrics

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“…Appearance of these domains happens under definite conditions and in the solid solutions with particular compositions that we have learned to proportion. The temperature interval above the Curie point where these domains may appear can reach and even exceed 100 C. The discussed existence of complex domains above the Curie temperature has been first revealed by X-ray method 20 (see also Ref. 15).…”

Section: Local Decomposition Of Solid Solutions In the Paraelectric Pmentioning

confidence: 99%

“…It is difficult to elicit directly such-like segregates with the AFE state in the PZT solid solutions at present. It has been done for the PZT-based solid solutions with compositions from the ferroelectricantiferroelectric morphotropic region of the \composition-temperature" phase diagram 9,11,12,15,16,20 (where the sizes of segregates were of the order of several tens of nanometer). In addition to that, several recently appeared publications pointed out the possibility of existence of the AFE ordering in the PZT solid solutions with compositions from the MPB region (the region between the tetragonal and rhombohedral phases) of the phase diagram.…”

Section: Introductionmentioning

confidence: 99%

Effects caused by antiferroelectric nanodomains in PZT-based coarse-grained ceramics with compositions from the morphotropic boundary region

2017

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Presented results demonstrate importance of taking into account such a phenomenon as the solid solution decomposition at the boundaries separating coexisting phases in lead zirconate-titanate-based solid solutions with compositions belonging to the morphotropic boundary region of the \temperature-composition" phase diagram. It is shown that in the local decomposition of solid solutions in the vicinity of the boundaries separating the tetragonal and rhombohedral phases in lead zirconate-titanate-based solid solutions lead to the changes of the solid solution's chemical composition and to the formation of segregates. It is also shown that the proper thermoelectric treatment of samples containing these segregates can give substantially higher values of piezoelectric parameters in the lead zirconate-titanate-based compounds.

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Peculiarities of ferro-antiferroelectric phase transitions. 6. Experiments on low-frequency dynamics of interphase domain walls

et al. 2000

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Phase diagrams of the system of solid solutions Pb_1-x(Li_1/2La_1/2)_x(Zr_1-yT_y)O₃in the vicinity of FE-AFE phase stability boundary 3. Effects caused by the coexistence of FE and AFE phases

Cited by 11 publications

References 6 publications

Peculiarities of Ferro-Antiferroelectric Phase Transitions 9. Can the Substances with Coexisting Ferroelectric and Antiferroelectric Phases Mimic the Dipole-Glass Behavior?

Peculiarities of Ferro-Antiferroelectric Phase Transitions 9. Can the Substances with Coexisting Ferroelectric and Antiferroelectric Phases Mimic the Dipole-Glass Behavior?

Effects caused by antiferroelectric nanodomains in PZT-based coarse-grained ceramics with compositions from the morphotropic boundary region

Peculiarities of ferro-antiferroelectric phase transitions. 6. Experiments on low-frequency dynamics of interphase domain walls

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