Influence of pressure on the kinetics of ferroelectric phase transition in BaTiO3
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866909352796880896 |
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| author | Mazur, Olga Tozaki, Ken-ichi Yoshimura, Yukio Stefanovich, Leonid |
| author_facet | Mazur, Olga Tozaki, Ken-ichi Yoshimura, Yukio Stefanovich, Leonid |
| contents | The ferroelectric phase transition in barium titanate under pressure was studied within the framework of Landau-Ginzburg theory using differential scanning calorimetry. An innovative method for high-sensitive thermal measurements under pressure was demonstrated. It was shown that the relaxation process proceeds nonmonotonically with the formation of intermediate short-lived phases. It was established that polydomain ordering is preferred but the monodomenization of the sample is possible under certain conditions. A narrowing of the temperature hysteresis with increasing pressure was revealed. A new tricritical point in barium titanate crystals characterizing the changing of the phase transition has been experimentally determined and theoretically confirmed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_12929 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Influence of pressure on the kinetics of ferroelectric phase transition in BaTiO3 Mazur, Olga Tozaki, Ken-ichi Yoshimura, Yukio Stefanovich, Leonid Materials Science The ferroelectric phase transition in barium titanate under pressure was studied within the framework of Landau-Ginzburg theory using differential scanning calorimetry. An innovative method for high-sensitive thermal measurements under pressure was demonstrated. It was shown that the relaxation process proceeds nonmonotonically with the formation of intermediate short-lived phases. It was established that polydomain ordering is preferred but the monodomenization of the sample is possible under certain conditions. A narrowing of the temperature hysteresis with increasing pressure was revealed. A new tricritical point in barium titanate crystals characterizing the changing of the phase transition has been experimentally determined and theoretically confirmed. |
| title | Influence of pressure on the kinetics of ferroelectric phase transition in BaTiO3 |
| topic | Materials Science |
| url | https://arxiv.org/abs/2410.12929 |