Electric field control of antiferroelectric domain pattern

Vakhrushev, S. B.; Andronikova, Daria; Bronwald, Iurii; Koroleva, Ekaterina; Chernyshov, Dmitry; Filimonov, A. V.; Udovenko, S. A.; Rudskoy, A. I.; Ishikawa, Daisuke; Baron, Alfred Q. R.; Bosak, Alexeï; Leontiev, I. N.; Tagantsev, A. K.

doi:10.1103/physrevb.103.214108

Cited by 13 publications

(13 citation statements)

References 28 publications

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“…The contribution of the mixed interference term

is even more important. These results confirm the high efficiency of the IXS technique for studying of the soft AFD modes in the perovskite-like materials as it was discussed in our previous paper [ 25 ]. In the case of the inelastic neutron scattering, the contribution of the oxygen mode will be dominating even at equal frequencies of the AFD and acoustic modes, while if the oxygen mode goes far below the acoustic one, the study of the mode coupling with neutrons becomes problematic.…”

Section: Discussionsupporting

confidence: 89%

“…As was explained in the paper [ 25 ] low frequency part of the IXS spectra at M-point includes 3 modes (the notation from the [ 35 ] is used): 2 double degenerate M

modes: acoustic M

and optic M

nondegenerate M

oxygen mode …”

Section: Resultsmentioning

confidence: 99%

“…Here the only temperature dependent parameter is is the frequency of the

at the M-point

. It was taken from the paper [ 25 ] where it was determined from the analysis of the data at M-point, where the mode coupling is forbidden. D is temperature independent coefficient and

is the correlation length of the “oxygen” mode.…”

Section: Resultsmentioning

confidence: 99%

“…To understand how the structure of the FE phase is formed, one should trace the behavior of the relevant critical dynamics. Lattice dynamics of the antiferroelectric and ferroelectric materials of the PZO group were studied both experimentally [ 11 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ] and theoretically [ 26 , 27 , 28 , 29 , 30 ]. In addition to the direct measurements of the phonon spectra using the optical spectroscopy and inelastic X-ray scattering (IXS) complementary diffuse scattering (DS) studies were done [ 14 , 31 , 32 , 33 , 34 ] The main attention was paid to the dynamic origin of the AFE phase and the details of the phonon dispersion around the

-point (

) and the R-point (

).…”

Section: Introductionmentioning

confidence: 99%

“…The direct IXS measurements have demonstrated the dynamic nature of the observed DS feature. In the very recent paper [ 25 ] the results of the study of the temperature evolution of the phonon spectra of the PZT2.4 are presented. The M

AFD mode was clearly identified softening on cooling to the phase transition from C to IFE phase.…”

Section: Introductionmentioning

confidence: 99%

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Mode Coupling at around M-Point in PZT

et al. 2021

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The question of the microscopic origin of the M-superstructure and additional satellite peaks in the Zr-rich lead zirconate-titanate is discussed for nearly 50 years. Clear contradiction between the selection rules of the critical scattering and the superstructure was found preventing unambiguous attributing of the observed superstructure either to the rotation of the oxygen octahedra or to the antiparallel displacements of the lead cations. Detailed analysis of the satellite pattern explained it as the result of the incommensurate phase transition rather than antiphase domains. Critical dynamics is the key point for the formulated problems. Recently, the oxygen tilt soft mode in the PbZr0.976Ti0.024O3 (PZT2.4) was found. But this does not resolve the extinction rules contradiction. The results of the inelastic X-ray scattering study of the phonon spectra of PZT2.4 around M-point are reported. Strong coupling between the lead and oxygen modes resulting in mode anticrossing and creation of the wide flat part in the lowest phonon dispersion curves is identified. This flat part corresponds to the mixture of the displacements of the lead and oxygen ions and can be an explanation of the extinction rules contradiction. Moreover, a flat dispersion surface is a typical prerequisite for the incommensurate phase transition.

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“…The contribution of the mixed interference term

Section: Discussionsupporting

confidence: 89%

“…As was explained in the paper [ 25 ] low frequency part of the IXS spectra at M-point includes 3 modes (the notation from the [ 35 ] is used): 2 double degenerate M

modes: acoustic M

and optic M

nondegenerate M

oxygen mode …”

Section: Resultsmentioning

confidence: 99%

“…Here the only temperature dependent parameter is is the frequency of the

at the M-point

. It was taken from the paper [ 25 ] where it was determined from the analysis of the data at M-point, where the mode coupling is forbidden. D is temperature independent coefficient and

is the correlation length of the “oxygen” mode.…”

Section: Resultsmentioning

confidence: 99%

-point (

) and the R-point (

).…”

Section: Introductionmentioning

confidence: 99%

AFD mode was clearly identified softening on cooling to the phase transition from C to IFE phase.…”

Section: Introductionmentioning

confidence: 99%

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Mode Coupling at around M-Point in PZT

et al. 2021

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Origin of Enhanced Dielectric Tunability in Antiferroelectric Ceramic Systems

Jurečič,

Rojac,

Bobnar

et al. 2024

Adv Funct Materials

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Antiferroelectric ceramics are considered as highly promising materials for the development of novel DC‐link, snubber, and filter capacitors used in high‐power and high‐speed electronics for electromotive and renewable energy applications, medical equipment, and weapons platforms. In particular, the increase of the dielectric permittivity with bias electric field, i.e., the dielectric tunability, is one of the most interesting and still not fully understood properties of antiferroelectric materials. The in situ dielectric measurements and thermometry of Pb0.99Nb0.02[(Zr0.57Sn0.43)0.92Ti0.08]0.9803 ceramics reveal that the dielectric response increases with bias electric field in the antiferroelectric phase due to the non‐linear contributions, most likely originating in the irreversible domain wall motions. Furthermore, extraordinarily high values of the dielectric tunability (≈375%) and the figure of merit (≈1680%) are determined at the temperature of the triple point. The minimization of the domain size near the triple point is proposed to be responsible for the enhanced dielectric tunability. The proposed mechanism is supported by the enhanced irreversible Rayleigh coefficient and via observation of minimized domains by piezoresponse force microscopy. The exploration of the role of the domain structure in antiferroelectrics contributes to a better understanding of their unique dielectric properties and opens a new possibility for the development of high‐performance capacitors.

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Tuning of Polar Domain Boundaries in Nonpolar Perovskite

Yokota

Kurihara

et al. 2023

Advanced Materials

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Domain boundaries in ferroic materials are found to have various physical properties not observed in the surrounding domains. Such differences can be enhanced and bring promising functionalities when centrosymmetric nonpolar materials encounter polar domain boundaries. In this work, a tunable polar domain boundary is discovered in an antiferroelectric single crystal. Under a small stress or electric field, the density, volume, and polarity of the boundaries are successfully controlled.

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Electric field control of antiferroelectric domain pattern

Cited by 13 publications

References 28 publications

Mode Coupling at around M-Point in PZT

Mode Coupling at around M-Point in PZT

Origin of Enhanced Dielectric Tunability in Antiferroelectric Ceramic Systems

Tuning of Polar Domain Boundaries in Nonpolar Perovskite

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