Statistical model for the description of ferroelectric phase transitions in BaTiO3 and KNbO3
In this paper, based on the developed statistical-thermodynamic model, which is based on data on the local structure of the compound and taking into account the striction interaction caused by the large sizes of the Ba and K cations, the formation of ferroelectric phases in BaTiO3 and KNbO3 perovski...
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World Scientific Publishing
2025-04-01
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Series: | Journal of Advanced Dielectrics |
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Online Access: | https://www.worldscientific.com/doi/10.1142/S2010135X2450019X |
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author | Michael Ivliev Konstantin Andryushin |
author_facet | Michael Ivliev Konstantin Andryushin |
author_sort | Michael Ivliev |
collection | DOAJ |
description | In this paper, based on the developed statistical-thermodynamic model, which is based on data on the local structure of the compound and taking into account the striction interaction caused by the large sizes of the Ba and K cations, the formation of ferroelectric phases in BaTiO3 and KNbO3 perovskites has been studied. Based on the modified eight-minimum model, it has been possible to qualitatively identify the factors that determine the features of the thermodynamic behavior of these crystals and to reproduce the process of formation of the whole set of phase states observed in BaTiO3 and KNbO3. |
format | Article |
id | doaj-art-0333c47c4c0e4e28802ebb7d8ee92260 |
institution | Kabale University |
issn | 2010-135X 2010-1368 |
language | English |
publishDate | 2025-04-01 |
publisher | World Scientific Publishing |
record_format | Article |
series | Journal of Advanced Dielectrics |
spelling | doaj-art-0333c47c4c0e4e28802ebb7d8ee922602025-01-07T03:28:07ZengWorld Scientific PublishingJournal of Advanced Dielectrics2010-135X2010-13682025-04-01150210.1142/S2010135X2450019XStatistical model for the description of ferroelectric phase transitions in BaTiO3 and KNbO3Michael Ivliev0Konstantin Andryushin1Research Institute of Physics, Southern Federal University, Rostov-on-Don, 344090, Stachki str. 194, RussiaResearch Institute of Physics, Southern Federal University, Rostov-on-Don, 344090, Stachki str. 194, RussiaIn this paper, based on the developed statistical-thermodynamic model, which is based on data on the local structure of the compound and taking into account the striction interaction caused by the large sizes of the Ba and K cations, the formation of ferroelectric phases in BaTiO3 and KNbO3 perovskites has been studied. Based on the modified eight-minimum model, it has been possible to qualitatively identify the factors that determine the features of the thermodynamic behavior of these crystals and to reproduce the process of formation of the whole set of phase states observed in BaTiO3 and KNbO3.https://www.worldscientific.com/doi/10.1142/S2010135X2450019XFerroelectric phasesBaTiO3KNbO3statistical-thermodynamic modellocal structurestriction interaction |
spellingShingle | Michael Ivliev Konstantin Andryushin Statistical model for the description of ferroelectric phase transitions in BaTiO3 and KNbO3 Journal of Advanced Dielectrics Ferroelectric phases BaTiO3 KNbO3 statistical-thermodynamic model local structure striction interaction |
title | Statistical model for the description of ferroelectric phase transitions in BaTiO3 and KNbO3 |
title_full | Statistical model for the description of ferroelectric phase transitions in BaTiO3 and KNbO3 |
title_fullStr | Statistical model for the description of ferroelectric phase transitions in BaTiO3 and KNbO3 |
title_full_unstemmed | Statistical model for the description of ferroelectric phase transitions in BaTiO3 and KNbO3 |
title_short | Statistical model for the description of ferroelectric phase transitions in BaTiO3 and KNbO3 |
title_sort | statistical model for the description of ferroelectric phase transitions in batio3 and knbo3 |
topic | Ferroelectric phases BaTiO3 KNbO3 statistical-thermodynamic model local structure striction interaction |
url | https://www.worldscientific.com/doi/10.1142/S2010135X2450019X |
work_keys_str_mv | AT michaelivliev statisticalmodelforthedescriptionofferroelectricphasetransitionsinbatio3andknbo3 AT konstantinandryushin statisticalmodelforthedescriptionofferroelectricphasetransitionsinbatio3andknbo3 |