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APL Materials 4, 016104 (2016); doi: 10.1063/1.4939790 Enhancing polarization by electrode-controlled strain relaxation in PbTiO₃ heterostructures |
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| Author: | Peräntie, J.1; Stratulat, M. S.1; Hannu, J.1; |
| Organizations: |
1Microelectronics and Materials Physics Laboratories, University of Oulu, P.O. Box 4500, FI-90014 Oulu, Finland |
| Format: | article |
| Version: | published version |
| Access: | open |
| Online Access: | PDF Full Text (PDF, 1.9 MB) |
| Persistent link: | http://urn.fi/urn:nbn:fi-fe201708158127 |
| Language: | English |
| Published: |
American Institute of Physics,
2016
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| Publish Date: | 2017-08-16 |
| Description: |
AbstractA large remanent polarization close to theoretical value 80 𝜇C/cm² of bulk PbTiO₃ is achieved in epitaxial heterostructures of (120–600)-nm-thick PbTiO₃ films grown by pulsed laser deposition on (001) SrTiO₃ substrate using a 100-nm-thick SrRuO₃ bottom electrode layer. The heterostructures employing a 50-nm-thick electrode exhibit a significantly smaller polarization of ≤60 𝜇C/cm². A detailed x-ray diffraction analysis of the crystal structure allows for relating this large polarization to electrode-controlled relaxation of epitaxial strain in PbTiO₃. Based on the observed results, we anticipate that the electrode-promoted strain relaxation can be used to enhance polarization in other epitaxial ferroelectric films. Erratum: “Enhancing polarization by electrode-controlled strain relaxation in PbTiO₃ heterostructures” [APL Mater. 4, 016104 (2016)], APL Materials 5, 029901 (2017); doi: http://dx.doi.org/10.1063/1.4975656 see all
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| Series: |
APL materials |
| ISSN: | 2166-532X |
| ISSN-E: | 2166-532X |
| ISSN-L: | 2166-532X |
| Volume: | 4 |
| Issue: | 1 |
| Article number: | 016104 |
| DOI: | 10.1063/1.4939790 |
| OADOI: | https://oadoi.org/10.1063/1.4939790 |
| Type of Publication: |
A1 Journal article – refereed |
| Field of Science: |
114 Physical sciences 216 Materials engineering |
| Subjects: | |
| Funding: |
This work was supported by the Finnish Funding Agency for Innovation (Grant No. 400.31.2013). |
| Copyright information: |
© 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.
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https://creativecommons.org/licenses/by/3.0/ |