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Tetragonal Distortion of a BaTiO3/Bi0.5Na0.5TiO3 Nanocomposite Responsible for Anomalous Piezoelectric and Ferroelectric Behaviors
https://repo.qst.go.jp/records/81556
https://repo.qst.go.jp/records/815567d3a9a6f-9a8c-4674-957b-64506c1b6418
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-01-05 | |||||
タイトル | ||||||
タイトル | Tetragonal Distortion of a BaTiO3/Bi0.5Na0.5TiO3 Nanocomposite Responsible for Anomalous Piezoelectric and Ferroelectric Behaviors | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Zhang, Wenxiong
× Zhang, Wenxiong× Feng, Qi× Hosono, Eiji× Asakura, Daisuke× Miyawaki, Jun× Harada, Yoshihisa× Jun, Miyawaki |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Ferroelectric mesocrystalline nanocomposites are functional materials with improved ferroelectricity via lattice strain engineering. In this study, X-ray diffraction (XRD) and soft X-ray absorption spectroscopy (XAS) are performed to determine the tetragonal distortion of Bi0.5Na0.5TiO3 (BNT) in a ferroelectric mesocrystalline BaTiO3 (BT)/BNT nanocomposite. The XRD results demonstrate the expansion of the BNT lattice in the BT/BNT nanocomposite. Using Williamson–Hall analysis, the tensile strain of BNT in BT/BNT-700 is confirmed. Shift and splitting of the eg orbital are observed for BNT in the BT/BNT nanocomposite in Ti L3-edge XAS, suggesting the lower symmetry of the TiO6 octahedron in BNT, which is ascribed to a significant tetragonal distortion of BNT in the BT/BNT nanocomposite caused by the lattice mismatch between BNT and BT. It is found that the tetragonally distorted BNT in BT/BNT is responsible for the anomalous ferroelectric response of the mesocrystalline BT/BNT nanocomposite. | |||||
書誌情報 |
ACS Omega 巻 5, 号 36, p. 22800-22807, 発行日 2020-08 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2470-1343 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1021/acsomega.0c01845 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://pubs.acs.org/doi/10.1021/acsomega.0c01845 |