Thermodynamics and dynamical properties of the KH<sub>2</sub>PO<sub>4</sub> type ferroelectric compounds. A unified model
Within the framework of the proposed unified proton ordering model for the ferroelectric compounds of the KH<sub>2</sub>PO<sub>4</sub> family, in the four-particle cluster approximation for the short-range interactions and mean field approximation for the long-range interacti...
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| Format: | Article |
| Language: | English |
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Institute for Condensed Matter Physics
2009-01-01
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| Series: | Condensed Matter Physics |
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| Online Access: | http://dx.doi.org/10.5488/CMP.12.1.75 |
| _version_ | 1811264628603224064 |
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| author | R.R. Levitskii I.R. Zachek A.S. Vdovych S.I. Sorokov |
| author_facet | R.R. Levitskii I.R. Zachek A.S. Vdovych S.I. Sorokov |
| author_sort | R.R. Levitskii |
| collection | DOAJ |
| description | Within the framework of the proposed unified proton ordering model for the ferroelectric compounds of the KH<sub>2</sub>PO<sub>4</sub> 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<sub>2</sub>PO<sub>4</sub> type ferroelectrics and ND<sub>4</sub>D<sub>2</sub>PO<sub>4</sub> type antiferroelectrics. Calculations for partially deuterated K(H<sub>1-x</sub>D<sub>x</sub>)<sub>2</sub>PO<sub>4</sub> type ferroelectrics and N(H<sub>1-x</sub>D<sub>x</sub>)<sub>4</sub>(H<sub>1-x</sub>D<sub>x</sub>)<sub>2</sub>PO<sub>4</sub> 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<sub>2</sub>PO<sub>4</sub> family crystals is obtained. |
| first_indexed | 2024-04-12T20:07:52Z |
| format | Article |
| id | doaj.art-464810a7796545d09f41fbe9a70b80af |
| institution | Directory Open Access Journal |
| issn | 1607-324X |
| language | English |
| last_indexed | 2024-04-12T20:07:52Z |
| publishDate | 2009-01-01 |
| publisher | Institute for Condensed Matter Physics |
| record_format | Article |
| series | Condensed Matter Physics |
| spelling | doaj.art-464810a7796545d09f41fbe9a70b80af2022-12-22T03:18:21ZengInstitute for Condensed Matter PhysicsCondensed Matter Physics1607-324X2009-01-0112175119Thermodynamics and dynamical properties of the KH<sub>2</sub>PO<sub>4</sub> type ferroelectric compounds. A unified modelR.R. LevitskiiI.R. ZachekA.S. VdovychS.I. SorokovWithin the framework of the proposed unified proton ordering model for the ferroelectric compounds of the KH<sub>2</sub>PO<sub>4</sub> 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<sub>2</sub>PO<sub>4</sub> type ferroelectrics and ND<sub>4</sub>D<sub>2</sub>PO<sub>4</sub> type antiferroelectrics. Calculations for partially deuterated K(H<sub>1-x</sub>D<sub>x</sub>)<sub>2</sub>PO<sub>4</sub> type ferroelectrics and N(H<sub>1-x</sub>D<sub>x</sub>)<sub>4</sub>(H<sub>1-x</sub>D<sub>x</sub>)<sub>2</sub>PO<sub>4</sub> 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<sub>2</sub>PO<sub>4</sub> family crystals is obtained.http://dx.doi.org/10.5488/CMP.12.1.75ferroelectricscluster approximation |
| spellingShingle | R.R. Levitskii I.R. Zachek A.S. Vdovych S.I. Sorokov Thermodynamics and dynamical properties of the KH<sub>2</sub>PO<sub>4</sub> type ferroelectric compounds. A unified model Condensed Matter Physics ferroelectrics cluster approximation |
| title | Thermodynamics and dynamical properties of the KH<sub>2</sub>PO<sub>4</sub> type ferroelectric compounds. A unified model |
| title_full | Thermodynamics and dynamical properties of the KH<sub>2</sub>PO<sub>4</sub> type ferroelectric compounds. A unified model |
| title_fullStr | Thermodynamics and dynamical properties of the KH<sub>2</sub>PO<sub>4</sub> type ferroelectric compounds. A unified model |
| title_full_unstemmed | Thermodynamics and dynamical properties of the KH<sub>2</sub>PO<sub>4</sub> type ferroelectric compounds. A unified model |
| title_short | Thermodynamics and dynamical properties of the KH<sub>2</sub>PO<sub>4</sub> type ferroelectric compounds. A unified model |
| title_sort | thermodynamics and dynamical properties of the kh sub 2 sub po sub 4 sub type ferroelectric compounds a unified model |
| topic | ferroelectrics cluster approximation |
| url | http://dx.doi.org/10.5488/CMP.12.1.75 |
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