Long-Term Isothermal Phase Transformation in Lead Zirconate
Lead zirconate PbZrO<sub>3</sub> has been the subject of research interest for several dozen years. Recently, even its antiferroelectric properties have started to be questioned, and many researchers still deal with the so-called intermediate phase below Curie temperature (T<sub>C&...
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| Online Access: | https://www.mdpi.com/1996-1944/15/12/4077 |
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| author | Dariusz Kajewski Irena Jankowska-Sumara Jae-Hyeon Ko Jeong Woo Lee Syed Furqan Ul Hassan Naqvi Rafał Sitko Andrzej Majchrowski Krystian Roleder |
| author_facet | Dariusz Kajewski Irena Jankowska-Sumara Jae-Hyeon Ko Jeong Woo Lee Syed Furqan Ul Hassan Naqvi Rafał Sitko Andrzej Majchrowski Krystian Roleder |
| author_sort | Dariusz Kajewski |
| collection | DOAJ |
| description | Lead zirconate PbZrO<sub>3</sub> has been the subject of research interest for several dozen years. Recently, even its antiferroelectric properties have started to be questioned, and many researchers still deal with the so-called intermediate phase below Curie temperature (T<sub>C</sub>), whose existence is not fully understood. It turns out that PbZrO<sub>3</sub> doped with Nb exhibits below T<sub>C</sub> phases with complex domain structures. One of them undergoes self-organization taking place at a constant temperature, and transforms, after several minutes, into a lower phase. This isothermal transition was investigated through dielectric, pyroelectric current and Raman scattering measurements. Discontinuities accompanied it in the permittivity and pyroelectric current. The obtained Raman spectra proved that those discontinuities are strictly linked with the isothermal transition between two intermediate phases. The ordering process in lead sublattice stimulated by thermal fluctuations is discussed as a driving force for this peculiar phenomenon. |
| first_indexed | 2024-03-09T23:12:52Z |
| format | Article |
| id | doaj.art-933dab2c608d4d8380103665151a249c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:12:52Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-933dab2c608d4d8380103665151a249c2023-11-23T17:42:15ZengMDPI AGMaterials1996-19442022-06-011512407710.3390/ma15124077Long-Term Isothermal Phase Transformation in Lead ZirconateDariusz Kajewski0Irena Jankowska-Sumara1Jae-Hyeon Ko2Jeong Woo Lee3Syed Furqan Ul Hassan Naqvi4Rafał Sitko5Andrzej Majchrowski6Krystian Roleder7Institute of Physics, University of Silesia, ul. 75 Pułku Piechoty 1, 41-500 Chorzów, PolandInstitute of Physics, Pedagogical University, ul. Podchorążych 2, 30-084 Kraków, PolandSchool of Nano Convergence Technology, 1 Hallymdaehakgil, Chuncheon 24252, Gangwondo, KoreaSchool of Nano Convergence Technology, 1 Hallymdaehakgil, Chuncheon 24252, Gangwondo, KoreaSchool of Nano Convergence Technology, 1 Hallymdaehakgil, Chuncheon 24252, Gangwondo, KoreaInstitute of Chemistry, University of Silesia, ul. Szkolna 9, 40-006 Katowice, PolandInstitute of Applied Physics, Military University of Technology, ul. gen. Sylwestra Kaliskiego 22, 00-908 Warsaw, PolandInstitute of Physics, University of Silesia, ul. 75 Pułku Piechoty 1, 41-500 Chorzów, PolandLead zirconate PbZrO<sub>3</sub> has been the subject of research interest for several dozen years. Recently, even its antiferroelectric properties have started to be questioned, and many researchers still deal with the so-called intermediate phase below Curie temperature (T<sub>C</sub>), whose existence is not fully understood. It turns out that PbZrO<sub>3</sub> doped with Nb exhibits below T<sub>C</sub> phases with complex domain structures. One of them undergoes self-organization taking place at a constant temperature, and transforms, after several minutes, into a lower phase. This isothermal transition was investigated through dielectric, pyroelectric current and Raman scattering measurements. Discontinuities accompanied it in the permittivity and pyroelectric current. The obtained Raman spectra proved that those discontinuities are strictly linked with the isothermal transition between two intermediate phases. The ordering process in lead sublattice stimulated by thermal fluctuations is discussed as a driving force for this peculiar phenomenon.https://www.mdpi.com/1996-1944/15/12/4077lead zirconatephase transitionRaman scattering |
| spellingShingle | Dariusz Kajewski Irena Jankowska-Sumara Jae-Hyeon Ko Jeong Woo Lee Syed Furqan Ul Hassan Naqvi Rafał Sitko Andrzej Majchrowski Krystian Roleder Long-Term Isothermal Phase Transformation in Lead Zirconate Materials lead zirconate phase transition Raman scattering |
| title | Long-Term Isothermal Phase Transformation in Lead Zirconate |
| title_full | Long-Term Isothermal Phase Transformation in Lead Zirconate |
| title_fullStr | Long-Term Isothermal Phase Transformation in Lead Zirconate |
| title_full_unstemmed | Long-Term Isothermal Phase Transformation in Lead Zirconate |
| title_short | Long-Term Isothermal Phase Transformation in Lead Zirconate |
| title_sort | long term isothermal phase transformation in lead zirconate |
| topic | lead zirconate phase transition Raman scattering |
| url | https://www.mdpi.com/1996-1944/15/12/4077 |
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