Phase Transition Effect on Ferroelectric Domain Surface Charge Dynamics in BaTiO<sub>3</sub> Single Crystal
The ferroelectric domain surface charge dynamics after a cubic-to-tetragonal phase transition on the BaTiO<sub>3</sub> single crystal (001) surface was directly measured through scanning probe microscopy. The captured surface potential distribution shows significant changes: the domain s...
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MDPI AG
2021-08-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/16/4463 |
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| author | Dongyu He Xiujian Tang Yuxin Liu Jian Liu Wenbo Du Pengfei He Haidou Wang |
| author_facet | Dongyu He Xiujian Tang Yuxin Liu Jian Liu Wenbo Du Pengfei He Haidou Wang |
| author_sort | Dongyu He |
| collection | DOAJ |
| description | The ferroelectric domain surface charge dynamics after a cubic-to-tetragonal phase transition on the BaTiO<sub>3</sub> single crystal (001) surface was directly measured through scanning probe microscopy. The captured surface potential distribution shows significant changes: the domain structures formed rapidly, but the surface potential on polarized <b><i>c</i></b> domain was unstable and reversed its sign after lengthy lapse; the high broad potential barrier burst at the corrugated <b><i>a-c</i></b> domain wall and continued to dissipate thereafter. The generation of polarization charges and the migration of surface screening charges in the surrounding environment take the main responsibility in the experiment. Furthermore, the <b><i>a</i></b><b>-<i>c</i></b> domain wall suffers large topological defects and polarity variation, resulting in domain wall broadening and stress changes. Thus, the <b><i>a-c</i></b> domain wall has excess energy and polarization change is inclined to assemble on it. The potential barrier decay with time after exposing to the surrounding environment also gave proof of the surface screening charge migration at surface. Thus, both domain and domain wall characteristics should be taken into account in ferroelectric application. |
| first_indexed | 2024-03-10T08:39:02Z |
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| id | doaj.art-58a6fe0566124155872b7c07cef025d1 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T08:39:02Z |
| publishDate | 2021-08-01 |
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| spelling | doaj.art-58a6fe0566124155872b7c07cef025d12023-11-22T08:27:52ZengMDPI AGMaterials1996-19442021-08-011416446310.3390/ma14164463Phase Transition Effect on Ferroelectric Domain Surface Charge Dynamics in BaTiO<sub>3</sub> Single CrystalDongyu He0Xiujian Tang1Yuxin Liu2Jian Liu3Wenbo Du4Pengfei He5Haidou Wang6National Key Laboratory for Remanufacturing, Army Academy of Armored Forces, Beijing 100072, ChinaNational Key Laboratory for Remanufacturing, Army Academy of Armored Forces, Beijing 100072, ChinaNational Key Laboratory for Remanufacturing, Army Academy of Armored Forces, Beijing 100072, ChinaNational Engineering Research Center for Remanufacturing, Army Academy of Armored Forces, Beijing 100072, ChinaNational Key Laboratory for Remanufacturing, Army Academy of Armored Forces, Beijing 100072, ChinaNational Key Laboratory for Remanufacturing, Army Academy of Armored Forces, Beijing 100072, ChinaNational Key Laboratory for Remanufacturing, Army Academy of Armored Forces, Beijing 100072, ChinaThe ferroelectric domain surface charge dynamics after a cubic-to-tetragonal phase transition on the BaTiO<sub>3</sub> single crystal (001) surface was directly measured through scanning probe microscopy. The captured surface potential distribution shows significant changes: the domain structures formed rapidly, but the surface potential on polarized <b><i>c</i></b> domain was unstable and reversed its sign after lengthy lapse; the high broad potential barrier burst at the corrugated <b><i>a-c</i></b> domain wall and continued to dissipate thereafter. The generation of polarization charges and the migration of surface screening charges in the surrounding environment take the main responsibility in the experiment. Furthermore, the <b><i>a</i></b><b>-<i>c</i></b> domain wall suffers large topological defects and polarity variation, resulting in domain wall broadening and stress changes. Thus, the <b><i>a-c</i></b> domain wall has excess energy and polarization change is inclined to assemble on it. The potential barrier decay with time after exposing to the surrounding environment also gave proof of the surface screening charge migration at surface. Thus, both domain and domain wall characteristics should be taken into account in ferroelectric application.https://www.mdpi.com/1996-1944/14/16/4463ferroelectric domaindomain wallsurface chargephase transition |
| spellingShingle | Dongyu He Xiujian Tang Yuxin Liu Jian Liu Wenbo Du Pengfei He Haidou Wang Phase Transition Effect on Ferroelectric Domain Surface Charge Dynamics in BaTiO<sub>3</sub> Single Crystal Materials ferroelectric domain domain wall surface charge phase transition |
| title | Phase Transition Effect on Ferroelectric Domain Surface Charge Dynamics in BaTiO<sub>3</sub> Single Crystal |
| title_full | Phase Transition Effect on Ferroelectric Domain Surface Charge Dynamics in BaTiO<sub>3</sub> Single Crystal |
| title_fullStr | Phase Transition Effect on Ferroelectric Domain Surface Charge Dynamics in BaTiO<sub>3</sub> Single Crystal |
| title_full_unstemmed | Phase Transition Effect on Ferroelectric Domain Surface Charge Dynamics in BaTiO<sub>3</sub> Single Crystal |
| title_short | Phase Transition Effect on Ferroelectric Domain Surface Charge Dynamics in BaTiO<sub>3</sub> Single Crystal |
| title_sort | phase transition effect on ferroelectric domain surface charge dynamics in batio sub 3 sub single crystal |
| topic | ferroelectric domain domain wall surface charge phase transition |
| url | https://www.mdpi.com/1996-1944/14/16/4463 |
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