| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-07-23 |
| タイトル |
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タイトル |
Mesocrystalline SrTiO3/CaTiO3 nanocomposites with 3D heteroepitaxial interfaces, superior piezoresponse and high Curie temperature |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
metadata only access |
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アクセス権URI |
http://purl.org/coar/access_right/c_14cb |
| 著者 |
Weixing, Zhao
Shasha, Zhang
Wenxiong, Zhang
Hongbo, Jiang
Yan, Wang
Dongmei, Wang
Dengwei, Hu
Xingang, Kong
上村, 忍
楠瀬, 尚史
馮, 旗
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Ferroelectric mesocrystalline nanocomposites are promising piezoelectric nanomaterials due to the presence of three-dimensional (3-D) heteroepitaxial interfaces, rendering superior piezoelectric and dielectric responses due to lattice strain at the interface. Herein, we describe the synthesis of mesocrystalline SrTiO3/CaTiO3 (ST/CT) nanocomposites via a two-step topochemical process by using layered titanate H1.07Ti1.73O4·nH2O (HTO), as a precursor, and demonstrate the influence of synthesis parameters on nanostructure, morphology, piezoelectric response and dielectric behavior. The mesocrystalline ST/CT nanocomposites are formed by in-situ topotactic structural transformation, consisting of [110]-oriented ST nanocrystals and [001]-oriented CT nanocrystals with high-density 3-D heteroepitaxial interfaces. The presence of 3-D heteroepitaxial interfaces introduces lattice strain at the interface, leading to an enormously enhanced piezoelectric response with a d33* value of 301 p.m./V. Moreover, the Curie temperature of ST phase is significantly increased from −250 °C to 300 °C by introducing lattice strain. It is demonstrated that the piezoresponse depends on lattice mismatch at heteroepitaxial interfaces and optimal lattice mismatch is found to be ∼3.3%, where the largest lattice strain effect and an expected d33* value of about 450 p.m./V could be achieved. These results demonstrate the potential of lattice strain engineering for high-performance lead-free piezoelectric materials. |
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言語 |
en |
| 書誌情報 |
en : Materials Chemistry and Physics
巻 316,
発行日 2024-04-01
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| 出版者 |
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出版者 |
Elsevier |
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言語 |
en |
| ISSN |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
0254-0584 |
| 権利 |
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言語 |
en |
|
権利情報 |
© 2024 Elsevier B.V. All rights reserved. |
| 助成情報 |
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識別子タイプ |
Crossref Funder |
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助成機関識別子タイプURI |
https://www.crossref.org/services/funder-registry/ |
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助成機関識別子 |
http://dx.doi.org/10.13039/501100008662 |
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助成機関名 |
公益財団法人 村田学術振興・教育財団 |
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言語 |
ja |
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助成機関名 |
Murata Science and Education Foundation |
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言語 |
en |
| 助成情報 |
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言語 |
en |
|
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プログラム情報 |
Key Research and Development Program of Shaanxi |
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研究課題番号 |
2020 KW-041 |
| 助成情報 |
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言語 |
en |
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|
プログラム情報 |
the Selected Funding Projects of Science and Technology Activities for Overseas Students in Shaanxi Province |
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研究課題番号 |
2020013 |
| 助成情報 |
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言語 |
en |
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プログラム情報 |
The Scientific Research Project of Shaanxi Province Office of Education |
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研究課題番号 |
2023-JC-YB-093 |
| 助成情報 |
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言語 |
en |
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プログラム情報 |
Shaanxi Provincial Department of Education Special Scientific Research Project |
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研究課題番号 |
22JK0244 |
| 著者版フラグ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
MCP316_129080
