Relaxation dynamics of quasi-one-dimensional CsD2PO4-type ferroelectrics

Levitsky, R. R.; Zachek, I. R.; Mits, E. V.; Grigas, J.; Paprotny, W.

doi:10.1080/00150198508018691

Cited by 4 publications

(2 citation statements)

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“…In the first case, the phase transition becomes antiferroelectric; in the second case the crystal symmetry and structure of the hydrogen bond system change. In the CsH 2 PO 4 type ferroelectrics, the proton ordering on hydrogen bonds is quasi-one-dimensional (see [34][35][36][37][38][39][40]). The same holds for PbHPO 4 ferroelectrics (see [41][42][43][44]).…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics and dynamical properties of the KH_{2}PO_{4} type ferroelectric compounds. A unified model

Levitskii¹,

Zachek²,

Vdovych³

et al. 2009

Condens. Matter Phys.

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Within the framework of the proposed unified proton ordering model for the ferroelectric compounds of the KH 2 PO 4 family, in the four-particle cluster approximation for the short-range interactions and mean field approximation for the long-range interactions, we calculate thermodynamic and longitudinal dynamic characteristics of the KD 2 PO 4 type ferroelectrics and ND 4 D 2 PO 4 type antiferroelectrics. Calculations for partially deuterated K(H 1−x Dx) 2 PO 4 type ferroelectrics and N(H 1−x Dx) 4 (H 1−x Dx) 2 PO 4 type antiferroelectrics are performed within the mean crystal approximation. It is shown that at the proper choice of the theory parameters, a good quantitative description of experimental data for the KH 2 PO 4 family crystals is obtained.

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Section: Introductionmentioning

confidence: 99%

Thermodynamics and dynamical properties of the KH_{2}PO_{4} type ferroelectric compounds. A unified model

Levitskii¹,

Zachek²,

Vdovych³

et al. 2009

Condens. Matter Phys.

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“…A consistent theory based on the Glauber dynamics approach and on the Zubarev nonequilibrium statistical operator techniques was developed for a description of the relaxational microwave dynamics of hydrogen bonded ferroelectrics [10,11]. Both approaches were successfully applied for the description of the phase transitions, thermodynamic and dynamic characteristics of the ferroelectric and antiferroelectric crystals of the KH 2 PO 4 family and of the CsH 2 PO 4 type [12,13] within the framework of the proton ordering and proton-phonon models [14][15][16][17]. The properties of the low frequency vibrations, including the soft mode, were explored.…”

Section: In Memory Of Professor Roman Levitskii: 1943-2022mentioning

confidence: 99%

In memory of Professor Roman Levitskii: 1943-2022

Moina¹,

Vdovych²,

Derzhko³

2022

Condens. Matter Phys.

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On January 6th, 2023, our long-term colleague, Professor Roman Levitskii should have celebrated his 80th birthday. The present issue of Condensed Matter Physics, covering the recent advances in the physics of ferroelectricity and multiferroics, had been inspired by the Editorial Board’s wish to mark this date with a collection of papers on the subject of his major interest throughout his long and fruitful life in science. As the collection had been prepared for print and the present paper was being written, a sad news arrived that after a long battle with diabetes Roman Levitskii passed away on October 28th, 2022. This is a big loss for us and for the entire scientific community of Ukraine. The present issue now becomes a tribute to our late friend and mentor and a bittersweet celebration of his lifelong achievements.

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33A-3: 5-8 CsH2PO4 [F]: 5 Dielectric properties, 6 Thermal properties, 7 Electromechanical properties, 8 Elastic properties

Nakamura

Komukae

Osaka

Landolt-Börnstein - Group III Condensed Matter

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Relaxation dynamics of quasi-one-dimensional CsD2PO4-type ferroelectrics

Cited by 4 publications

References 4 publications

Thermodynamics and dynamical properties of the KH_{2}PO_{4} type ferroelectric compounds. A unified model

Thermodynamics and dynamical properties of the KH_{2}PO_{4} type ferroelectric compounds. A unified model

In memory of Professor Roman Levitskii: 1943-2022

33A-3: 5-8 CsH2PO4 [F]: 5 Dielectric properties, 6 Thermal properties, 7 Electromechanical properties, 8 Elastic properties

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