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| Verfasst von: | Lin, Jun Liang [VerfasserIn]  |
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| | He, Ri [VerfasserIn] |
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| | Lu, Zengxing [VerfasserIn] |
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| | Lu, Yi [VerfasserIn] |
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| | Wang, Zhiming [VerfasserIn] |
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| | Zhong, Zhicheng [VerfasserIn] |
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| | Zhao, Xiang [VerfasserIn] |
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| | Li, Run-Wei [VerfasserIn] |
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| | Zhang, Zhi Dong [VerfasserIn] |
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| | Wang, Zhan Jie [VerfasserIn] |
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| Titel: | Oxygen vacancy enhanced ferroelectricity in BTO |
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| Titelzusatz: | SRO nanocomposite films |
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| Verf.angabe: | Jun Liang Lin, Ri He, Zengxing Lu, Yi Lu, Zhiming Wang, Zhicheng Zhong, Xiang Zhao, Run-Wei Li, Zhi Dong Zhang, Zhan Jie Wang |
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| E-Jahr: | 2020 |
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| Jahr: | 13 August 2020 |
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| Umfang: | 10 S. |
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| Fussnoten: | Gesehen am 10.11.2020 |
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| Titel Quelle: | Enthalten in: Acta materialia |
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| Ort Quelle: | Amsterdam [u.a.] : Elsevier Science, 1996 |
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| Jahr Quelle: | 2020 |
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| Band/Heft Quelle: | 199(2020), Seite 9-18 |
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| ISSN Quelle: | 1873-2453 |
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| Abstract: | The enhancement of ferroelectric properties in lead-free ferroelectric is usually achieved by strain engineering. Here, we report a surprising polarization enhancement effect in an isostructural ferroelectric nanocomposite system composited by the ferroelectric material of BaTiO3 and metallic non-ferroelectric oxide of SrRuO3. BaTiO3:SrRuO3 (BTO:SRO) ferroelectric nanocomposite films with the volume ratio of nanogranular SRO ranging from 0 to 16% grown on the Nb-doped SrTiO3 (NSTO) single-crystal substrates by pulsed laser deposition (PLD) are investigated. Robust ferroelectric polarization is observed with a remanent polarization of about 40 μC/cm2, comparable to those found in Pb(ZrxTi1-x)O3 thin films. By combining X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), density functional theory (DFT) calculations, and phase-field simulation, a hypothesis has been proposed that the polarization enhancement may be mainly attributed to the accumulation of oxygen vacancies at the BTO/SRO interface rather than lattice mismatch strain. The novel mechanism of polarization enhancement opens new possibilities for designing future ferroelectric devices. |
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| DOI: | doi:10.1016/j.actamat.2020.08.016 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: https://doi.org/10.1016/j.actamat.2020.08.016 |
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| | Volltext: http://www.sciencedirect.com/science/article/pii/S1359645420306133 |
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| | DOI: https://doi.org/10.1016/j.actamat.2020.08.016 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | Ferroelectricity |
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| | First-principles calculations |
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| | Laser deposition |
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| | Nanocomposite |
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| | Oxygen vacancy |
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| K10plus-PPN: | 1738322351 |
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| Verknüpfungen: | → Zeitschrift |
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Oxygen vacancy enhanced ferroelectricity in BTO / Lin, Jun Liang [VerfasserIn]; 13 August 2020 (Online-Ressource)
