Novel Applications of Antiferroelectrics and Relaxor Ferroelectrics: A Material’s Point of View

Park, Min Hyuk; Hwang, Cheol Seong

doi:10.1007/978-94-024-0841-6_14

Cited by 4 publications

(3 citation statements)

References 57 publications

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“…The M-superstructure reflections are systematically absent for points of the form (h + ½, 0, h + ½). Such extinction in the M-position indicates that the appearance of the Msuperstructure is due to the same-phase tilts of oxygen octahedra [8].…”

Section: Resultsmentioning

confidence: 99%

“…For ferroelectrics and antiferroelectrics anomalies of dielectric properties are inherent in the region of phase transition. There are many reports that the most useful characteristics of antiferroelectrics reach the maximum value in the vicinity of phase transition and associated with structural instabilities in these compounds [6][7][8]. In connection with it the study of phase transitions in such crystals is in demand.…”

Section: Introductionmentioning

confidence: 99%

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Modulated Structures in PbHfO<sub>3</sub> Crystals at High-Pressure-High-Temperature Conditions

Knjazeva

Bronwald

Andronikova

et al. 2018

DDF

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Lead hafnate single crystals were characterized using single crystal x-ray diffraction under simultaneous application of hydrostatic pressure and high temperatures. The information on the structure of two intermediate phases, situated between antiferroelectric and paraelectric phases in the pressure-temperature phase diagram, has been obtained. The lower-temperature intermediate phase is characterized by incommensurate displacive modulations in Pb sublattice. The higher-temperature intermediate phase is characterized by oxygen framework distortion, primarily in the form of anti-phase tilts of the oxygen octahedra, which is also present in the lower-temperature intermediate phase.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modulated Structures in PbHfO<sub>3</sub> Crystals at High-Pressure-High-Temperature Conditions

Knjazeva

Bronwald

Andronikova

et al. 2018

DDF

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“…Today they are actively used in industry: their solid solutions with ferroelectrics are used in devices for various purposes, including piezoelectric and pyroelectric converters and electro-optical devices (Haertling, 1999;Scott, 2007;Heremans & Tuller, 1999). Interest in pure antiferroelectrics is growing (Liu et al, 2023;Omran et al, 2021;Vales-Castro et al, 2021) due to new applications in energy storage devices (Zhang et al, 2021b;Tsai et al, 2021;Huang et al, 2021b), memory devices (Park & Hwang, 2016;Xu et al, 2017;Liu et al, 2018) and electrocaloric devices (Guo et al, 2019;Huang et al, 2021a).…”

Section: Introductionmentioning

confidence: 99%

In situ X-ray diffraction evidence of field-induced transitions in a PbHfO₃ single crystal

Arkhipov,

Ganzha,

Kniazeva

et al. 2024

J Appl Crystallogr

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Antiferroelectric (AFE) materials are interesting due to recent discoveries of new prospective applications, although the mechanisms of the phase transitions that are at the heart of these applications remain incompletely understood. This work is devoted to the study of a single crystal of a model AFE, lead hafnate, by X-ray diffraction with in situ application of an electric field to trigger the transition to a polar phase. Two consecutive experiments were carried out on a 35 µm thick plate with [110] surface normal orientation over a field range from 0 to 330 kV cm−1 and back. A sharp drop in the intensity of R- and Σ-type reflections around 225 kV cm−1 was registered, with almost complete disappearance after 250 kV cm−1. This is compatible with a field-induced phase transition from the AFE to the R3m polar phase, which was suggested earlier on the basis of non-diffraction characterizations. X-ray diffraction reveals that the AFE domains with displacements parallel to the field direction react much more smoothly to the field, gradually reducing the AFE order at very small fields instead of holding it almost constant up to the critical field value, which is naturally expected. This expectation is fulfilled for domains with other orientations, but only for the first switching cycle; in the second switching cycle the AFE order already shows a notable decrease at subcritical fields. It is suggested that these observations could be linked with the antiphase domain wall population being affected by the field, which is consistent with the observation of diffuse rods between the Γ and Σ points. Another remarkable observation is the much smoother recovery of the AFE phase compared with its sharp disappearance at the critical field.

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Pyropermittivity as an emerging method of thermal analysis, with application to carbon fibers

Chung

2022

J Therm Anal Calorim

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Novel Applications of Antiferroelectrics and Relaxor Ferroelectrics: A Material’s Point of View

Cited by 4 publications

References 57 publications

Modulated Structures in PbHfO<sub>3</sub> Crystals at High-Pressure-High-Temperature Conditions

Modulated Structures in PbHfO<sub>3</sub> Crystals at High-Pressure-High-Temperature Conditions

In situ X-ray diffraction evidence of field-induced transitions in a PbHfO₃ single crystal

Pyropermittivity as an emerging method of thermal analysis, with application to carbon fibers

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Novel Applications of Antiferroelectrics and Relaxor Ferroelectrics: A Material’s Point of View

Cited by 4 publications

References 57 publications

Modulated Structures in PbHfO<sub>3</sub> Crystals at High-Pressure-High-Temperature Conditions

Modulated Structures in PbHfO<sub>3</sub> Crystals at High-Pressure-High-Temperature Conditions

In situ X-ray diffraction evidence of field-induced transitions in a PbHfO3 single crystal

Pyropermittivity as an emerging method of thermal analysis, with application to carbon fibers

Contact Info

Product

Resources

About

In situ X-ray diffraction evidence of field-induced transitions in a PbHfO₃ single crystal