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Domain wall motion in Pb(Zr0.20Ti0.80)O3 epitaxial thin films
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Borderon, C., Brunier, A., Nadaud, K., Renoud, R., Alexe, M. (Marin) and Gundel, H. W. (2017) Domain wall motion in Pb(Zr0.20Ti0.80)O3 epitaxial thin films. Scientific Reports, 7 (1). 3444. doi:10.1038/s41598-017-03757-y ISSN 2045-2322.
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Official URL: http://doi.org/10.1038/s41598-017-03757-y
Abstract
Two Pb(Zr0.20Ti0.80)O3 samples of different thickness and domain configuration have been studied. The c-domain sample was found to have a higher coercive field E c and higher dielectric losses than the other which presents approximately 60% of c-domains and 40% of a-domains as observed by piezo force microscopy (PFM) characterization. Hyperbolic law measurements reveal that the higher coercive field is due to domain wall pinning in deeper defects and hence a higher field E th is required for unpinning. The dissipation factors due to domain wall motion, however, are similar in both samples since the domain wall density is low and there is almost no interaction between domain walls. The higher dielectric losses in the c-domain oriented sample are a result of a greater contribution from the lattice and seem to be due to strain from the substrate, which is not relieved in a thin sample. PFM and dielectric characterization are complementary methods which provide a better understanding of the domain wall motion.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
| SWORD Depositor: | Library Publications Router | ||||||
| Journal or Publication Title: | Scientific Reports | ||||||
| Publisher: | Nature Publishing Group | ||||||
| ISSN: | 2045-2322 | ||||||
| Official Date: | 13 June 2017 | ||||||
| Dates: |
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| Volume: | 7 | ||||||
| Number: | 1 | ||||||
| Article Number: | 3444 | ||||||
| DOI: | 10.1038/s41598-017-03757-y | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Reuse Statement (publisher, data, author rights): | ** From PubMed via Jisc Publications Router. ** History: ** received: 01-02-2017 ** accepted: 03-05-2017 | ||||||
| Access rights to Published version: | Open Access (Creative Commons) |
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