| Title: | Synergetic boost of functional properties near critical end points in antiferroelectric systems |
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| Authors: | ID Jurečič, Vida, Institut Jožef Stefan (Author)
ID Fulanović, Lovro (Author)
ID Koruza, Jurij (Author)
ID Bobnar, Vid, Institut Jožef Stefan (Author)
ID Novak, Nikola, Institut Jožef Stefan (Author) |
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| Files: |  URL - Source URL, visit https://journals.aps.org/prmaterials/abstract/10.1103/PhysRevMaterials.7.114407
 PDF - Presentation file, download (713,61 KB)
MD5: A93E5FE2E0A2A819589FA6DE31E60BD9
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | The increase of the dielectric permittivity with an electric field and enhanced energy storage properties make antiferroelectrics very attractive for high-power electronic applications needed in emerging green energy technologies and neuromorphic computing platforms. Their exceptional functional properties are closely related to the electric field-induced antiferroelectric↔ferroelectric phase transition, which can be driven toward a critical end point by manipulation with an external electric field. The critical fluctuation of physical properties at the critical end point in ferroelectrics is a promising approach to improve their functional properties. Here, we demonstrate the existence of two critical end points in antiferroelectric ceramics with a ferroelectric-antiferroelectric-paraelectric phase sequence, using the model system Pb 0.99 Nb 0.02 [ ( Zr 0.57 Sn 0.43 ) 0.92 Ti 0.08 ] 0.98 O 3 . The critical fluctuation of the dielectric permittivity in the proximity of the antiferroelectric-to-paraelectric critical end point is responsible for the strong enhancement of the dielectric tunability (by a factor of > 2 ) measured at ≈ 395 K. The enhancement of the energy storage density at ≈ 370 K is related to the proximity of the ferroelectric-to-antiferroelectric critical end point. These findings open possibilities for material design and pave the way for the next generation of high-energy storage materials. |
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| Keywords: | electronic applications, high-power electronic, green energy, electric field |
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| Publication status: | Published |
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| Publication version: | Author Accepted Manuscript |
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| Submitted for review: | 11.08.2023 |
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| Article acceptance date: | 17.10.2023 |
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| Publication date: | 16.11.2023 |
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| Publisher: | American Physical Society |
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| Year of publishing: | 2023 |
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| Number of pages: | Str. 114407-114415 |
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| Numbering: | Vol. 7, iss. 11 |
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| Source: | ZDA |
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| PID: | 20.500.12556/DiRROS-19229  |
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| UDC: | 53 |
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| ISSN on article: | 2475-9953 |
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| DOI: | doi.org/10.1103/PhysRevMaterials.7.114407 |
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| COBISS.SI-ID: | 173741315 |
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| Copyright: | ©2023 American Physical Society |
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| Note: | Nasl. z nasl. zaslona;
Opis vira z dne 27. 11. 2023;
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| Publication date in DiRROS: | 10.07.2024 |
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| Views: | 231 |
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| Downloads: | 151 |
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